1. Feet of king fisher are modified for
(a) wading
(b) perching
(c) running
(d) catching
2. Bird vertebrae are
(a) acoelous
(b) heterocoelous
(c) amphicoelous
(d) procoelous
3. Hair occur in all mammals except those of
(a) Rodentia
(b) Chiroptera
(c) Primata
(d) Cetacea
4. Lamina propria is connected with
(a) acini
(b) liver
(c) graafian follicle
(d) intestine
5. Fish which can be used in biological control of mosquitoes/Larvicidal fish is
(a) Eel
(b) Carp
(c) Cat Fish
(d) Gambusia
6. Jelly Fishes belongs to class
(a) Hydrozoa
(b) Scyphozoa
(c) Anthozoa
(d) None of these
7. Transfer of Taenia to secondary host occurs as
(a) onchosphere
(b) cysticercus
(c) morula
(d) egg
8. Photoreceptors of earthworm occur on
(a) clitellum
(b) many eyes
(c) dorsal surface
(d) lateral sides
9. Earthworms are
(a) useful
(b) harmful
(c) more useful than harmful (d) more harmful
10. A chordate character is
(a) gills
(b) spiracles
(c) postanal tail
(d) chitinous exoskeleton
11. Flight muscles of birds are attached to
(a) clavicle
(b) keel of sternum
(c) scapula
(d) coracoid
12. Wish bone of birds is from
(a) pelvic girdle
(b) skull
(c) hind limbs
(d) pectoral girdle/clavicles
13. Eutherians are characterised by
(a) hairy skin
(b) true placentation
(c) ovoviviparity
(d) glandular skin
14. Onchosphere occurs in
(a) Ascaris
(b) Fasciola
(c) Taenia
(d) Planaria
15. Taenia saginata differs from Taenia solium in
(a) absence of scolex hooks
(b) absence of scolex hooks and uterine branching
(c) absence of scolex hooks and presence of both male and female reproductive organs
(d) presence of scolex hooks
16. Pheretima posthuma is highly useful as
(a) their burrows make the soil loose
(b) they make the soil porous, leave their castings and take organic debris in the soil
(c) they are used as fish meal
(d) None of these
17. Blood of Pheretima is
(a) blue with haemocyanin in corpuscles
(b) blue with haemocyanin in plasma
(c) red with haemoglobin in corpuscles
(d) red with haemoglobin in plasma
18. In hot summer and cold winter, the number of malaria cases as well as Anopheles declines, Reappearance of malaria in humid warm conditions is due to
(a) surving malarial parasites in human carriers
(b) surviving sporozoites in surviving mosquitoes
(c) monkeys
(d) mosquito larvae in permanent waters
19. Malpighian tubules are
(a) excretory organs of insects
(b) excretory organs of annelids
(c) respiratory organs of insects
(d) respiratory organs of annelids
20. Kala-azar and Oriental Sore are spread by
(a) Housefly
(b) Bed Bug
(c) Sand Fly
(d) Fruit Fly
21. Penguin occurs in
(a) Australia
(b) Antarctica
(c) Africa
(d) America
22. Ecdysis is shedding of
(a) stratum corneum
(b) epidermis
(c) dermis
(d) stratum Malpighi
23. Skin is a respiratory organ in
(a) lizards
(b) birds
(c) primitive mammals
(d) frog
24. Earthworm possesses hearts
(a) 6 pairs
(b) 4 pairs
(c) 2 pairs
(d) 1
25. Bladderworm/cysticercus is the larval stage of
(a) Tapeworm
(b) Roundworm
(c) Pinworm
(d) Liver Fluke
26. The excretory structures of flatworms/Taenia are
(a) flame cells
(b) protonephridia
(c) malpighian tubules
(d) green glands
27. Classification of Porifera is based on
(a) branching
(b) spicules
(c) reproduction
(d) symmetry
28. Ascaris lumbricoides infection occurs through
(a) sole of uncovered feet
(b) contaminated cooked measly pork
(c) improperly cooked measly pork
(d) from air through inhalation
29. Male and female cockroaches can be distinguished externally through
(a) anal styles in male
(b) anal cerci in female
(c) anal style and antennae in females
(d) both b and c
30. Metamorphosis of insects is regulated through hormone
(a) pheromone
(b) thyroxine
(c) ecdysone
(d) all the above
31. An insect regarded as greatest mechanical carrier of diseases is
(a) Pediculus
(b) Cimex
(c) Musca
(d) Xenopsylla
32. Which one occurs in Echinodermata
(a) Bilateral symmetry
(b) Radical symmetry
(c) Porous body
(d) Soft skin
33. Kidney of adult rabbit is
(a) pronephros
(b) metanephros
(c) mesonephros
(d) opisthonephros
34. An egg laying mammal is
(a) Kangaroo
(b) Platypus
(c) Koala
(d) Whale
35. The simplest type of canal system in Porifera is
(a) ascon type
(b) leucon type
(c) sycon type
(d) radial type
36. What is correct about Taenia?
(a) Male organ occure in posterior proglottides
(b) Male organ occure in anterior proglottides
(c) Female organ occure in anterior proglottides
(d) Mature proglottides contain both male and female organs
37. Ascaris larva is called
(a) cysticercus
(b) rhabditiform
(c) hexacanth
(d) onchosphere
38. A. Periplaneta americana is nocturnal, omnivorous, household pest. R. It is because it acts as scavenger
(a) A is true but R is false
(b) A is false but R is true
(c) Both A and R are true and R is correct explanation of A
(d) Both A and R are true but R is not correct explanation of A
39. Sound box of birds is called
(a) pygostyle
(b) larynx
(c) syrinx
(d) synsacrum
40. Adult Culex and Anopheles can be distinguished with the help of
(a) mouth parts/colour
(b) sitting posture
(c) antennae/wings
(d) feeding habits
41. Eye of the molluscan group that resembles vertebrate eye is
(a) bivalvia
(b) gastropoda
(c) pelecypoda
(d) cephalopoda
42. Star fish belongs to
(a) Asteriodea
(b) Ophiuroidea
(c) Holothuroidea
(d) Crinoidea
43. Aristotle‘s lantern occurs in class
(a) Echinoidea
(b) Asteroidea
(c) Holothuroidea
(d) Ophiuroidea
44. Bull Frog of India is
(a) Rana tigrina
(b) R. sylvatica
(c) R. ecutesbeiana
(d) R. esculenta
45. The cervical vertebrae in humans is
(a) same as in whale
(b) more than that in rabbit
(c) double than that of horse
(d) less than that in giraffe
46. What is common in Whale, Bat and Rat?
(a) Absence of neck
(b) Muscular diaphragm between thorax and abdomen
(c) Extra-abdominal testes to avoid high temperature of body
(d) Presence of external ears
47. Gorilla, Chimpanzee, Monkeys and Humans belongs to the same
(a) species
(b) genus
(c) family
(d) order
48. All vertebrates possess
(a) renal portal system
(b) dorsal hollow central nervous system
(c) four chambered ventral heart
(d) pharyngeal gill slits
49. Mucus helps frog in forming
(a) thick skin
(b) dry skin
(c) smooth skin
(d) moist skin
50. A larval stage occurs in the life history of all members of the group
(a) frog, lizard and cockroach
(b) ascaris, housefly and frog
(c) housefly, earthworm and mosquito
(d) butterfly, frog and mosquito
51. Tracheae of cockroach and mammal
are similar in having
(a) paried nature
(b) noncollapsible walls
(c) ciliated inner lining
(d) origin from head
52. Give the correct matching of causative agent/ germ and disease
(a) Anopheles – malaria
(b) Leishmania – Sleeping sickness
(c) Glossina – Kala-azar
(d) Wuchereria – Filariasis
53. Budding is a normal mode of asexual reproduction in
(a) starfish and Hydra
(b) hydra and sponges
(c) tapeworm and Hydra
(d) sponge and starfish
54. Which one of the following animals possesses nerve cells but no nerves
(a) Hydra
(b) Tapeworm
(c) Earthworm
(d) Frog‘s tadpole
55. What is true about Taenia saginata?
(a) Life history has pig as intermediate host
(b) There are two large suckers on scolex
(c) Rostellar hooks are absent
(d) Rostellum has double circle of hooks
56. Which one assists in locomotion
(a) Trichocysts in Paramecium
(b) Pedicellariae of Star Fish
(c) Clitellum in Pheretima
(d) Posterior sucker in Hirudinaria
57. What is common between Ostrich, Penguin and Kiwi?
(a) Running birds
(b) Migratory birds
(c) Flightless birds
(d) Four toed birds
58. Radial symmetry is often exhibited by animals having
(a) one opening of alimentary canal
(b) aquatic mode of living
(c) benthos/sedentary living
(d) ciliary mode of feeding
59. Coelom derived from blastocoel is known as
(a) enterocoelom
(b) schizocoel
(c) pseudocoelom
(d) haemocoelom
60. Special character of Coelenterates is
(a) polymorphism
(b) nematocysts
(c) flame cells
(d) hermaphroditism
61. Point out the non-parasite
(a) Tapeworm
(b) Mosquito
(c) Leech
(d) Sea anemone
62. Which one belongs to Platyhelminthes?
(a) Schistosoma
(b) Trypanosoma
(c) Plasmodium
(d) Wuchereria
63. Closed circulatory system occurs in
(a) snail
(b) cockroach
(c) cuttle Fish
(d) all of these
64. Tube feet occur in
(a) Cockroach
(b) Star Fish
(c) Cuttle Fish
(d) Cat Fish
65. All chordates possess
(a) exoskeleton
(b) limbs
(c) skull
(d) axial skeletal rod of notochord
66. A common characteristic of all vertebrates is
(a) presence of skull
(b) division of body into head, neck, trunk and tail
(c) presence of two pairs of functional appendages
(d) body is covered with an exoskeleton
67. Golden era/age of reptiles is
(a) palaeozoic
(b) mesozoic
(c) recent
(d) proterozoic
68. The organisms attached to the substratum, generally, possess
(a) radial symmetry
(b) one single opening of digestive canal
(c) asymmetrical body
(d) cilia on surface to create water current
69. Besides annelida and arthropoda, the metamerism is exhibited by
(a) cestoda
(b) chordata
(c) mollusca
(d) acanthocephala
70. Pneumatic bones are expected to be found in
(a) pigeon
(b) house lizard
(c) frog‘s tadpole (d) flying fish
71. Radial symmetry is usually associated with
(a) aquatic mode of life
(b) lower grade of organisation
(c) creeping mode of locomotion
(d) sedentary mode of life
72. True coelom is the space lying between the alimentary canal and body wall enclosed by the layers of
(a) ectoderm on both sides
(b) endoderm on one side and ectoderm on the other
(c) mesoderm on one side and ectoderm on the other
(d) mesoderm on both sides
73. What is true about all sponges without exception
(a) They are all marine
(b) They have flagellated collar cells
(c) They have a mixed skeleton consisting of spicules and spongin fibres
(d) They reproduce only asexually by budding
74. Functionwise, just as there are nephridia in an earthworm, so are
(a) parotid glands in toad
(b) statocysts in prawn
(c) flame cells in liver fluke
(d) myotomes in fish
75. The flightless bird Cassowary is found in
(a) Mauritius
(b) Australia
(c) New Zealand
(d) Indonesia
76. Animals/organisms floating on the surface of water are
(a) plankton
(b) pelagic
(c) benthos
(d) neritic
77. Organ Pipe Coral is
(a) Tubipora
(b) Astraea
(c) Helipora
(d) Fungia
78. Silk thread is obtained from Silk Moth during
(a) pupal state
(b) larval state
(c) nymph state
(d) adult state
79. A wood boring mollusc/Shipworm is
(a) Chiton
(b) Teredo
(c) Limax
(d) Patella
80. Association between Sucker Fish (Remora) and Shark is
(a) Commensalism
(b) Symbiosis
(c) Predation
(d) Parasitism
81. Which is not a true amphibian animal
(a) Salamander
(b) Toad
(c) Tortoise
(d) Frog
82. Fire bellied toad is
(a) Amphiuma
(b) Discoglossus
(c) Necturus
(d) Salamandra
83. Necturus is
(a) Hell Bender
(b) Congo Eel
(c) Mud Puppy
(d) Blind Worm
84. Typhlops is
(a) Sea Snake
(b) Glass Snake
(c) Blind Snake
(d) Grass Snake
85. Both male and female pigeons secrete milk through
(a) Salivary glands
(b) Modified sweat glands
(c) Crop
(d) Gizzard
86. Which among these is the correct combination of aquatic mammals?
(a) Dolphins, Seals, Trygon
(b) Whales, Dolphins, Seals
(c) Trygon, Whales, Seals
(d) Seals, Dolphins, Sharks
87. Water vascular system which help in ____
(a) Cocomotion
(b) capture and transport of food
(c) respiration
(d) all above
88. Consider the following four statements (A–D) related to the common frog Rana tigrina, and select the correct option stating which ones are true (T) and which ones are false (F)
Statements:
A. On dry land it would die due to lack of O2 if its mouth is forcibly kept closed for a few days.
B. It has fourchambered heart.
C. On dry land it turns uricotelic from ureotelic.
D. Its lifehistory is carried out in pond water.
A B C D
(a) T F F T
(b) T T F F
(c) F F T T
(d) F T T F
89. In case of poriferans, the spongocoel is lined with flagellated cells called
(a) oscula
(b) choanocytes
(c) mesenchymal cells
(d) ostia
90. Chondrichthyes is characterized by ………
(a) ventral mouth
(b) placoid scale
(c) ctenoid scale and ventral mouth
(d) placoid scale and ventral mouth
91.The poisonous fluid present in nematocyst of Hydra is
(a) toxin
(b) venom
(c) hematin
(d) hypnotoxin
92.Which of the following features is not present in the Phylum Arthropoda?
(a) Parapodia
(b) Jointed appendages
(c) Chitinous exoskeleton
(d) Metameric segmentation
93. A marine cartilaginous fish that can produce electric current is
(a) Pristis
(b) Torpedo
(c) Trygon
(d) Scoliodon
94. Dry skin with scales or scutes without gland is a characteristic of
(a) Aves
(b) pisces
(c) Reptilia
(d) mammals
95. Which one of the following groups of structures/organs have similar function?
(a) Typhlosole in earthworm, intestinal villi in rat and contractile vacuole in Amoeba.
(b) Nephridia in earthworm, Malpighian tubules in cockroach and urinary tubules in rat.
(c) Antennae of cockroach, tympanum of frog and clitellum of earthworm.
(d) Incisors of rat, gizzard (proventriculus) of cockroach and tube feet of starfish
96.Which one of the following pairs of animals are similar to each other pertaining to the feature stated against them?
(a) Pteropus and Viviparity ornithorhynchus
(b) Garden lizard and Three chambered crocodile heart
(c) Ascaris and Metameric ancylostoma segmentation
(d) Sea horse and Cold blooded flying fish (poikilothermal)
97. Which of the following statements is without exception for sponges?
(a) They all have calcareous spicules.
(b) They have high regenerative power.
(c) They are found only in marine water.
(d) They are all radially symmetrical
98. Which of the following organisms possesses characteristics of a plant and an animal?
(a) Euglena
(b) Paramecium
(c) Bacteria
(d) Mycoplasma
99. Which statement best explains why invertebrates regenerate lost tissue more readily than most vertebrates do?
(a) Invertebrates contain specialized cells that produce the hormones necessary for this process.
(b) Invertebrate cells exhibit a higher degree of uncontrolled cell division than vertebrate cells do.
(c) Invertebrate animals reproduce asexually, but vertebrate animals reproduce sexually.
(d) Invertebrate animals have more undifferentiated cells than vertebrate animals have.
100.Which one of the following pairs of items correctly belongs to the category of organs mentioned against it?
(a) Nephridia of earthworm and Malpighian tubules of cockroach excretory organs
(b) Wings of honey bee and wings of crow homologous organs
(c) Thorn of Bougainvillea and tendrils of Cucurbita analogous organs
(d) Nictitating membrane and blind spot in human eye vestigial organs
101.Biradial symmetry and lack of cnidoblasts are the characteristics of
(a) Hydra and starfish
(b) starfish and sea anemone
(c) Ctenoplana and Beroe
(d) Aurelia and Paramecium
102. Given are the four matches of phyla with their characteristic cells
A. Coelenterata – Nematocytes
B. Porifera – Choanocytes
C. Ctenophora – Solenocytes
D. Platyhelminthes – Nephrocytes
102. Given are the four matches of phyla with their characteristic cells
A. Coelenterata – Nematocytes
B. Porifera – Choanocytes
C. Ctenophora – Solenocytes
D. Platyhelminthes – Nephrocytes
Mark the option that has both correct matches
(a) A and B
(b) B and C
(c) C and D
(d) B and D
103.Bartholin’s glands are situated
(a) on the sides of the head of some amphibians
(b) at the reduced tail end of birds
(c) on either side of vagina in humans
(d) on either side of vas deferens in humans
104. Which of the following statements are true/false?
(i) In Torpedo, the electric organs are capable of generating strong electric shock to paralyze the prey.
(ii) Bony fishes use pectoral, pelvic, dorsal anal and caudal fins in swimming.
(iii) Amphibian skin is moist and has thick scales.
(iv) Birds are poikilothermic animals.
(v) The most unique mammalian characteristic is the presence of milk producing mammary glands by which the young ones are nourished.
(a) (i), (ii) and (iii) are true; (iv), (v) are false
(b) (i), (ii) and (v) are true; (iii) and (iv) are false
(c) (i), (iv) and (v) are true; (ii) and (iii) are false
(d) (i), (ii) and (iv) are false; (iii) and (v) are true
105. Which of the following characters is absent in all chordates?
(a) Diaphragm
(b) Coelom
(c) Pharyngeal gill clefts
(d) Dorsal nerve cord
106. An important characteristic that Hemichordates share with Chordates is :
(a) Ventral tubular nerve cord
(b) Pharynx with gill slits
(c) Pharynx without gill slits
(d) Absence of notochord
107. Which among these is the correct combination of aquatic mammals ?
(a) Dolphins, Seals, Trygon
(b) Whales, Dolphins, Sealsmorph
(c) Trygon, Whales, Seals
(d) Seals, Dolphins, Sharks
108. In case of a couple where the male is having a very low sperm count, which technique will be suitable for fertilisation ?
(a) Gamete intracytoplasmic fallopian transfer
(b) Artificial Insemination
(c) Intracytoplasmic sperm injection
(d) Intrauterine transfer
109. MALT constitutes about ________ percent of the lymphoid tissue in human body.
(a) 20%
(b) 70%
(c) 10%
(d) 50%
110. Which of the following represents order of’Horse’ ?
(a) Perissodactyla
(b) Caballus
(c) Ferus
(d) Equidae
111. Frog’s heart when taken out of the body continues to beat for sometime. Select the best option from the following statements.
(a) Frog is a poikilotherm.
(b) Frog does not have any coronary circulation.
(c) Heart is “myogenic” in nature.
(d) Heart is autoexcitable
Options:
(1) Only(d)
(2) (a) and (b)
(3) (c)and(d)
(4) Only(c)
112. In case of poriferans, the spongocoel is lined with flagellated cells called:
(a) oscula
(b) choanocytes
(c) mesenchymal cells
(d) ostia
113. Identify the vertebrate group of animals characterized by crop and gizzard in its digestive system
(a) Amphibia
(b) Reptilia
(c) Osteichthyes
(d) Aves
114. Which one of these animals is not a homeotherm?
(a) Macropus
(b) Chelone
(c) Psittacula
(d) Camelus
115. Which of the following animals does not undergo metamorphosis?
(a) Earthworm
(b) Tunicate
(c) Starfish
(d) Moth
116. Consider following features
(a) Organ system level of organisation
(b) Bilateral symmetry
(c) True coelomates with segmentation of body
Select the correct option of animal groups.
which possess all the above characteristics
(1) Annelida, Arthropoda and Chordata
(2) Annelida, Arthropoda and Mollusca
(3) Arthropoda, Mollusca and Chordata
(4) Annelida, Mollusca and Chordata
117. Match the following organisms with their respective characteristics :
(a) Pila (i) Flame cells
(b) Bombyx (ii)Comb plates
(c) Pleurobrachia (iii) Radula
(d) Taenia (iv) Malpighian tubules
Select the correct option from the following :
(a) (b) (c) (d)
(1) (iii) (ii) (i) (iv)
(2) (iii) (iv) (ii) (i)
(3) (ii) (iv) (iii) (i)
(4) (iii) (ii) (iv) (i)
118. Bilaterally symmetrical and acoelomate animals are exemplified by
(a) Aschelminthes
(b) Annelida
(c) Ctenophora
(d) Platyhelminthes
119. Match the following columns and select the correct option.
Column-I Column-II
(a) Gregarious, polyphagous pest (i) Asterias
(b) Adult with radial symmetry and larva (ii) Scorpion with bilateral
symmetry
(c) Book lungs
(iii) Ctenoplana
(d) Bioluminescence
(iv) Locusta
(a) (b) (c) (d)
(1) (iii) (ii) (i) (iv)
(2) (ii) (i) (iii) (iv)
(3) (i) (iii) (ii) (iv)
(4) (iv) (i) (ii) (iii)
120. Which of the following statements are true for the phylum-Chordata?
(a) In Urochordata notochord extends from head to tail and it is present throughout their life.
(b) In Vertebrata notochord is present during the embryonic period only.
(c) Central nervous system is dorsal and hollow.
(d) Chordata is divided into 3 subphyla : Hemichordata, Tunicata and Cephalochordata.
(1) (a) and (b)
(2) (b) and (c)
(3) (d) and (c)
(4) (c) and (a)
121. Match the following columns and select the correct option.
Column-I Column-II
(a) 6-15 pairs of (i) Trygon
gill slits
(b) Heterocercal (ii) Cyclostomes
caudal fin
(c) Air Bladder (iii)Chondrichthyes
(d) Poison sting (iv) Osteichthyes
(a) (b) (c) (d)
(1) (iv) (ii) (iii) (i)
(2) (i) (iv) (iii) (ii)
(3) (ii) (iii) (iv) (i)
(4) (iii) (iv) (i) (ii)
122. Match the following
List-I List-II
(a) Physalia (i) Pearl oyster
(b) Limulus (ii) Portuguese Man of War
(c) Ancylostoma (iii) Living fossil
(d) Pinctada (iv) Hookworm
Choose the correct answer from the options given below.
(a) (b) (c) (d)
(1) (i) (iv) (iii) (ii)
(3) (iv) (i) (iii) (ii)
(4) (ii) (iii) (iv) (i)
123. Which one of the following organisms bears hollow and pneumatic long bones?
(a) Ornithorhynchus
(b) Neophron
(c) Hemidactylus
(d) Macropus
124. Read the following statements
(a) Metagenesis is observed in Helminths.
(b) Echinoderms are triploblastic and coelomate animals.
(c) Round worms have organ-system level of body organization.
(d) Comb plates present in ctenophores help in digestion.
(e) Water vascular system is characteristic of Echinoderms.
Choose the correct answer from the options given below.
(1) (b), (c) and (e) are correct
(2) (c), (d) and (e) are correct
(3) (a), (b) and (c) are correct
(4) (a), (d) and (e) are correct
Solutions :
1. In birds hind limbs are variously modified for various functions like perching, grasping etc. In the kingfisher they are modified for wading.
2.Solution: (b)
Bird vertebrae are heterocoelous. Acoelous vertebrae are found in mammals.
3. Solution: (d)
Members of the order Cetacea of class Mammalia are aquatic animals like whales, dolphins having smooth and hairless skin.
4.Solution: (d)
It is the middle layer of 3 layered Mucosa (outer muscularis mucosa, middle lamina propria & inner simple columnar epithelium) of intestine. It is made up of a highly vascular connective tissue containing lymphatic nodules.
5.Solution: (d)
Gambusia
6.Solution: (b)
Animals which are marine, solitary, bell or umbrella shaped belong to class Scyphozoa i.e., Jelly fish.
7. Solution: (a)
The eggs of Taenia passes out through human faeces which is eaten by pigs, eggs develops into onchosphere then to cyst larva in the muscle of pig; The entry stage into secondary host (Pig) is onchosphere.
8. Solution: (c)
Light receptors found in diffused condition to differentiate between light and dark. These receptors are present on the dorsal surface.
9.Solution: (a)
Earthworms are very useful to human as they make the soil porous and increase its fertility through worm casting. They are called as Nature‘s ‗plough man‘.
11. Solution: (b)
In birds flight muscles or breast muscles are attached to the large sternum or breast bone. The wings are powered by these flight muscles.
12. Solution: (d)
Two clavicles fused with inter clavicle to form a fork shaped bone called wish bone or furcula or bone of merry thoughts.
13. Solution: (b)
14.Solution: (c)
Onchosphere is the larval stage in Taenia solium.
15. Solution: (b)
Taenia saginata lacks rostellum and scolex hooks.
16.Soution (b)
18.Solution: (b)
19. Solution: (a)
Malpighian tubules are fine, unbranched, yellow tubules that lie more or less free in the haemocoel. They open into alimentary canal. They absorb nitrogenous waste product, thus acts as excretory organs in insects.
20.Solution: (c)
Sand fly is the vector of Kala azar (Leishmania donovani), causes severe liver infection.
21. Solution: (b)
Penguin is a flightless bird found in colder region like Antarctica.
22. Solution: (a)
Stratum corneum is the outermost, partially cornified layer of scale like cells. Small fragments of this layer are periodically shed off from the body known as ecdysis. The new layer is regularly formed by underlaying stratum germinativum.
23.Solution: (d)
Skin in fact is a secondary or accessory respiratory organ in frog when frog undergoes the hybernation or aestivation i.e. winter sleep or summer sleep & when it goes into the water for a long.
24. Solution: (b)
Earthworm has 4 pairs of heart i.e., 2 pairs Lateral hearts and 2 pairs Lateral oesophageal hearts present in 7th and 9th and 12th and 13th segments respectively.
25.Solution: (a)
Bladderworm or cysticerus larva forms in Tapeworm.
26.Solution: (a)
Excretory system of Taenia consists of a pair of peculiar flame cells, which absorb the waste material from the body and
discharges it through excretory duct.
27.Solution: (b)
The terms porifera was given by Grant, the phylum includes animals with pores in their body. Its classification based on skeleton or spicules.
28. Ascaris lumbricoides infection occurs through
(a) sole of uncovered feet
(b) contaminated cooked measly pork
(c) improperly cooked measly pork
(d) from air through inhalation
29. Solution: (a)
Sexual dimorphism is found in cockroach. A pair of anal style are present in male cockroach only. Female has broader abdomenal segments.
29. Solution: (a)
Sexual dimorphism is found in cockroach. A pair of anal style are present in male cockroach only. Female has broader abdomenal segments.
30.Solution: (c)
Metamorphosis of insects is regulated through ecdysone hormone.
31.Solution: (c)
Musca is the zoological name of house fly which is regarded as mechanical carrier of many diseases. It is very active and keeps
on visiting on dirty things and eatables as well.
32. Solution: (b)
Larval stage of Echinoderms have bilateral symmetry and the adults have radial symmetry, pentamerous i.e., body parts arranged in five or multiples of five.
33. Solution: (b)
Metanephric kidney is found differentiated into cortex and medulla and duct of such kidney is ureter.
34.Solution: (b)
Prototherians are egg laying mammals, they share characters with reptiles. e.g., -Duck bill Platypus The Platypus(Ornithorhynchus anatinus) is a semiaquatic mammal endemic to eastern Australia and Tasmania. Together with the four species of echidna, it is one of the five species of monotremes, the only mammals that lay eggs instead of giving birth to live young. It is the sole living representative of its family rnithorhynchidae) and genus (Ornithorhynchus), though a number of related species have been found in the fossil record
35.Solution: (a)
Presence of canal system – a network of channels for water transport – is an important feature in sponges. Ascon type of canal is simplest in Porifera which brings in food, oxygen and carries away CO2 and nitrogenous waste.
36.Solution: (d)
The body of Taenia is ribbon like and is divided into segments called proglottids. Each proglottid has one or two sets of male and female reproductive organs.
37. Solution: (b)
Ascaris larva is also called rhabditiform.
38.Solution: (c)
Periplaneta americana (cockroach) cannot act as a scavanger, it does not feed upon dead animals.
39. Solution: (c)
Sound box or syrinx is present below trachea which produces sound in birds.
40. Solution: (b)
The body of an adult lies more or less parallel to the surface in Culex where as in Anopheles the body lies at an angle of 45° to the surface.
41.Solution: (d)
42. Solution: (a)
Star fish belongs to the class – Asteroidea.
43.Solution: (a)
Jaw apparatus is called Aristotle‘s Lantern which is present in the Class Echinoidae of the Phylum Echinodermata.
44.Solution: (a)
Rana tigrina – Bull frog; Order – Anura Amphibia.
45.Solution: (a)
The number of cervical vertebrae are same in man & whale that is 7 in number.
46. Solution: (b)
Diaphragm is present in mammals as a muscular seperator between thorax and abdominal region.
47. Solution: (d)
Gorilla, Chimpanzee, Monkeys and Man belongs to same order- Primates of class mammalia.
48.Solution: (b)
Dorsal hollow nervous system is one of the important feature of vertebrates.
49. Solution: (d)
Mucus helps frog in forming moist skin as it is necessary for cutaneous respiration during hibernation of frog.
50. Solution: (d)
A larval stage occurs in the life history of butterfly, frog and mosquitoes.
51.Solution: (b)
Tracheal tube of cockroach and human have non-collapsable wall. Each tracheal tube is lined with cuticle which prevents collapsing.
52.Solution: (d)
Wuchereria – Filariasis
53.Solution: (b)
Budding is an asexual mode of reproduction in Hydra & sponges. Bud is formed as an outgrowth on the body surface, then detached to form new animal.
54.Solution: (a)
Nerve cells are present in the form of network of neurons in Hydra but the brain and nerves are absent.
55.Solution: (c)
Rostellum and hooks are absent in Taenia saginata.
56.Solution: (d)
57.Solution: (c)
Ostrich, Kiwi, Penguin are all flightless birds.
58. Solution: (c)
In radial symmetry – body is cut longitudinally through any radius into two equal halves. Present in sessile animals i.e. star fish that live in the sea bottom.
59.Solution: (c)
Coelom or body cavity, when derived from blastocoel is pseudocoelom as in nematodes, rotifers. In this type of cavity, mesoderm is lined by only one side i.e., towards the body wall. Schizocoel is true coelom derived from mesodermal segments.
60.Solution: (b)
Presence of nematocysts or stinging cells are the characteristic feature of the phylum Coelenterata. It serves the function of
offence and defence by producing toxin to kill the prey & enemy.
61. Solution: (d)
Sea anemone (Adamsia) is marine animal attached to the empty shell of gastropods occupied by hermit crab. They live as symbionts, not as parasites.
62.Solution: (a)
Schistosoma (Blood fluke) –Platyhelminthes Trypanosoma –Aschelminthes Wuchereria – Aschelminthes Plasmodium – Protozoa
63. Solution: (c)
Cockroach & snail has open type of circulatory system. Closed type of blood circulatory system occurs in cuttlefish.
64.Solution: (b)
Tube feet is the locomotory organ that occur in star fishes.
65.Solution: (d)
All chordate possess: — Notochord at some stage of life — Dorsal tubular nervous system — Pharyngeal gill slits at same
stage of life cycle.
66.Solution: (a)
Vertebrates are also known as Craniata due to presence of skull in all its members.
77.Solution: (b)
Jurassic period of mesozoic era is known as the ‗Age of reptiles‘.
68.Solution: (a)
The organisms, which are attached to substratum, generally, possess radial symmetry in all vertical planes.
69.Solution: (b)
Metamerism is an important character of annelida and arthropoda. The body is divided externally into segments called metameres. Metamerism is also exhibited by chordata due to repetition of a succession of homologous structures alongth anterio-posterior axis.
70. Solution: (a)
Birds have pneumatic bones.
71.Solution: (b)
refer answer
72.Solution: (d)
Coelom is a fluid filled space between body wall and alimentary canal which is lined by parietal peritoneum (mesoderm) on the outer side and visceral peritoneum (mesoderm) on the inner side.
73.Solution: (b)
Sponges are marine with the exception of family spongilidae, the members of which occur in fresh water e.g. Spongilla. Their endoskeleton is made of either spicules or spongin fibres or both. Sponges reproduce asexually by fragmentation or by budding or through gemmules and reduction bodies. Sponges also exhibit sexual reproduction.
74.Solution: (c)
Toads possess a pair of large parotid glands behind the tympana. They produce a milky poisonous fluid. Statocysts are the organs of equilibrium and sensory perception located at the base of antennae. Flame cells in liver fluke are the excretory organs.
75. Solution: (b)
Flightless birds are restricted to the islands of Australia and New Guinea.
76.Solution: (a)
Organisms passively floating on the surface of water are planktons. If floating organisms are animals then it is zooplankton and if plant – phytoplankton.
77.Solution: (a)
Tubipora is organ pipe coral comes under class Anthozia.
78. Solution: (a)
Caterpillar larva is a voracious eater, it gets matured and by secreting silk thread changes into pupa & it encloses into silk cocoon.
79. Solution: (b)
Teredo (shipworm) is the member of class – Bivalvia (double shell plates). Shipworms are not in fact worms at all, but rather a group of marine mollusc (Eulamellibranchiata) in the family Teredinidae. They bore into submerged wood, and bacteria in a special organ called the gland of Deshayes enable them to digest cellulose. The shipworms belong to several genera of which Teredo is the most commonly mentioned. The best known species is Teredo navalis.
80.Solution: (a)
Commensalism is an association between two organisms in which one is benefitted but the other is not harmed.
81. Solution: (c)
Tortoise (Testudo) is a member of orderChelonia, Class – Reptiles.
82.Solution: (b)
Fire bellied toad (Bombina Orientalis) is a member of family discoglossidae of order Anura of class Amphibia. Its belly is red or orange-red.
83.Solution: (c)
Necturus (Mud puppy) order – Urodela class – Amphibia. It is a species of salamanders that is a part of the genus Necturus.
84.Solution: (c)
Typhols is a non poisonous blind snake.
85.Solution: (c)
Crop in birds stores & softens food and in pigeons secrete milk.
86.b) Whales, Dolphins, Seals
87.(d) all above
88.(a) T F F T
89.(b) choanocytes filter particles out of the water and into the spongocoel, and out through the osculum. This improves both respiratory and digestive functions for the sponge, pulling in oxygen and nutrients and allowing a rapid expulsion of carbon dioxide and other waste products.
90.(d) Chondrichthyes is one of the classes of super-class-Pisces, sub-phylum-Vertebrata and phylum-Chrodata. The members of class-Chondrichthyes are marine animals with streamlined body and have cartilaginous endoskeleton. Mouth is located ventrally. The skin is tough, containing minute placoid scales. The teeth are modified placoid scales which are backwardly directed, e.g., Dog fish (Scoliodon), saw fish (Pristis), great white shark (Carcharodon), sting ray (Trygort), etc.
91. (d) The poisonous fluid present in nematocyst of Hydra is hypnotoxin.
92.(a)Parapodia are present in aquatic annelids like Nereis, which help them in swimming. Other three features, i.e. metameric segmentation, jointed appendages and chitinous exoskeleton are present in phylum-Arthropoda. Out of these metameric segmentation is visible as tagmetisation.
93.(b) The electric rays are a group of rays, flattened cartilaginous fish with enlarged pectoral fins, composing the order Torpediniformes. They are known for being capable of producing an electric discharge, ranging from 8 to 220 volts, depending on species, used to stun prey and for defense.
94.(c) Reptilia
95.(b) Nephridia in earthworm, malpighian tubules in cockroach and urinary tubules in rat are all excretory in function.
96.(d) Sea horse and flying fish are fishes and fishes are cold-blooded animals, i.e., the temperature of their body varies with the environment. Ornithorhyncus is oviparous, crocodile has 44-chambered heart, Ascaris and Ancylostoma do not show metameric segmentation.
97. (b)All sponges have high Regeneration power. Their skeleton may consist of calcareous or siliceous spicules. Some sponges live in fresh water
98.(a) Eudena is a connecting link between animals and plants. Euglena contains chlorophyll, yet it resembles animals because it feeds like animals in the absence of sunlight. It resembles the ancestral form from which the plants and animals evolve
99.(d) Invertebrate animals have more undifferentiated cells than vertebrate animals have.
100.(a) Malpighian tubules constitute the excretory organs of cockroach and other insects. Nephridia are the most generally found excretory organs in earthworms.
101.(c) Ctenoplana and Beroe lack cnidobiasts and have brradial symmetry. These belong to phylum-Ctenophora. Hydra, sea anemone and Aurelia are coelenterates which have cnidoblasts. Although sea anemone has biradial symmetry.
102.(a) A and B
103.(c) The Bartholin’s (BAHR-toe-linz) glands are located on each side of the vaginal opening. These glands secrete fluid that helps lubricate the vagina
104.(b) (i), (ii) and (v) are true; (iii) and (iv) are false
105.(a) Diaphragm is a membrane that separates thoracic cavity from abdominal cavity. It is present only in mammals. All other chordates do not have diaphragm as their body cavity is not divided into thoracic and abdominal cavities. Chordates are coelomate animals having a true coelom, entercoelic and shizocoelic in origin. Pharyngeal gill slits are present at some stage, may or may not be functional. Nerve cord is dorsal and tubular.
106 (b)Hemichordates are a deuterostome phylum, the sister group to echinoderms, and closely related to chordates. They have thus been used to gain insights into the origins of deuterostome and chordate body plans. Pharyngeal slits are a third chordate feature; these are openings between the pharynx, or throat, and the outside.
107. (b)Whales, Dolphins, Seals Marine mammals are classified into four different taxonomic groups : cetaceans (whales, dolphins, and porpoises), pinnipeds (seals, sea lions, and walruses) , sirenians (manatees and dugongs), and marine fissipeds (polar bears and sea otters).
108. (b) Artificial insemination is the deliberate introduction of sperm into a female’s cervix or uterine cavity for the purpose of achieving a pregnancy through in vivo fertilization by means other than sexual intercourse Gamete intrafallopian transfer (GIFT) is used for infertile women who are ovulating but have blocked oviducts (fallopian tubes) or for infertile couples who, for religious reasons, wish to avoid fertilization outside the human body.Intracytoplasmic Sperm Injection (ICSI) is a specialised form of In Vitro Fertilisation (IVF) that is used primarily for the treatment of severe cases of male-factor infertility.
109. (d) MALT may consist of a collection of lymphoid cells, or it may include small solitary lymph nodes. Lymph nodes contain a light-staining region (germinal center) and a peripheral dark-staining region. The germinal center is key to the generation of a normal immune response. Their function is to trap microorganisms or other antigens that enter the lymph and tissue fluid. Mucosal Associated Lymphoid Tissue (MALT) is formed of the masses of lymphoid tissue, lining the mucosa of respiratory, digestive and urogenital tracts. About 50% of lymphoid tissue in human body is formed by MALT
110. (1)
Classification of Horse is as follows:
Kingdom: Animalia
Phylum: Chordata
Order: Perissodactyla (Odd toes)
Rhinos, Tapir, and Horses belong to order Perissodactyla because they possess odd toes.
111. (c)Frogs heart is myogenic in nature which means it originates in muscle tissue and not from nerve impulse and it is auto excitable( does not need external stimuli). When frogs heart taken out of the body continues to beat for some time that is till the time ATP is available, because it is not dependent on nervous system and does not require external stimuli as SA node can generate action potential on its own
112. (b) The flagellated cells lining the spongocoel is called choanocytes cells. Ostia are the pores present on the body of Sponges
113 (d)Aves
114 (2) Homeotherms will only survive if the internal temperature of the body is within a small
range. Examples: Amphibians, mammals and birds.
A. Camelus is a mammal and regulates its body temperature. It is a homeotherm.
B. Macropus is a marsupial, so it is also a homeotherm.
C. Psittacula is an ave, it is a homeotherm as well.
D. Chelone is a plant. It cannot regulate the internal body temperature.
115 (a)Metamorphosis is a biological process by which an animal physically develops after birth or hatching, involving a conspicuous and relatively abrupt change in the animal’s body structure through cell growth and differentiation.An earthworm is a terrestrial invertebrate that belongs to the order Opisthopora. They exhibit a tube-within-a-tube body plan, are externally segmented with corresponding internal segmentation, and usually have setae on all segments. They occur worldwide where soil, water, and temperature allow.
116 (1) Annelida, Arthropoda and Chordata
117(2)The Radula is the organ of Pila, which is used to cut the food in srnall pieces. The radula is a flat ribbon-like structure found inside the buccal cavity of Pila. Silkworms (Bombyx mori) provide an ideal candidate, as they accumulate large amounts of calcium oxalate crystals in their Malpighian tubules ,organs that function like mammalian kidneys and are considered analogous to kidney epithelium.Pleurobrachia is Ctenophore. The body bears eight external rows of ciliated comb plates, which help in locomotion Excretory organs are flame cells scattered all over the mesenchyme. A flame cell is of irregular shape with granular cytoplasm and a nucleus. Bundle of cilia or flame arises from basal granules near nucleus. The excretory products pass out through excretory canals and out of excretory pores.
118(4)
• Ctenophora — Radial symmetry
• Platyhelminthes — Bilateral symmetry— Acoelomate
• Aschelminthes — Bilateral symmetry — Pseudocelomate
• Annelida — Bilateral symmetry — Schizocoelomate (True coelomate)
119 (4)
• Gregarious, polyphagous pest— Locusta
• Adult with radial symmetry and larva with bilateral symmetry —Asterias
• Book lungs—Scorpion
• Bioluminescence—Ctenoplana
120 (b)
• Chordata is divided into 3 subphyla Urochordata, Cephalochordata and Vertebrata.
121 (c)
• 6−15 pairs of gill slits — Cyclostomes
• Heterocercal caudal fin — Chondrichthyes
• Air bladder — Osteichthyes
• Poison sting — Trygon
122 (b) (ii) (iii) (i) (iv)
123 (b)
In Aves (e.g., Neophron), endoskeleton is fully ossified (bony) and the long bones are hollow with air cavities (pneumatic)
124(d) High temperature about 94°C is required for the process of denaturation which is the first step of PCR. Ligation of DNA fragments is performed with the help of an enzyme called DNA ligase. Annealing is performed at 50°-60°C which is the second step that can get affected. Addition of nucleotides to the primer, synthesizing a new DNA strand using only the template sequences with the help of enzyme DNA polymerase is called primer extension polymerisation.
