Zoology Objective Question

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Objective Question Papers of Zoology

1. Rhabdome is found in
(1) eyes of insects
(2) cornea of human
(3) statocyst of annelida
(4) eyes of mollusca

2. Antennae are absent in –
(1) Dragon fly
(2) Spider
(3) Prawn
(4) Peripatus

3. What is Trophallaxis ?
(1) Exchange of food between insects
(2) Exchange of message through touch between insects
(3) Exchange of message through sound between insects
(4) Parental care in insects .

4. Coelom when derived from blastocoel is called :
(1) Haemocoel
(2) Schizocoel
(3) Pseudocoel
(4) Enterocoel

5. Larva of Unio is
(1) Glochidium
(2) Cercaria
(3) Veliger
(4) Planula

6. Larva is not found in the life history of
(1) Ascaris
(2) Taenia
(3) Frog
(4) Pheretima

7. Blood pigment in Scorpion
(1) Erythrocynin
(2) Haemocynin
(3) Haemoglobin
(4) Gamaglobin

8. Final moult of the larva in the life cycle of Ascaris takes place in
(1) Soul
(2) Lungs of host
(3) Intestine of host
(4) Liver of host

9. Corpora cardiaca is :
(1) Salivary glands of Insects
(2) Endocrine organs of Insects
(3) Excretory organs of Insects
(4) None of these

10. Excretory organs of Prawn is
(1) Green glands
(2) Coxal glands
(3) Malpighian tubules
(4) Trachae

11. In Aurilia equilibrium is controlled by
(1) radial muscles
(2) nematocyst
(3) tentaculocysts
(4) elastic fibre

12. Chloragogen cells found in coelomic fluid of Pheretima posthuma helps in
(1) Excretion
(2) Respiration
(3) Reproduction
(4) Circulation

13. A true perivisceral coeloms around alimentary canal is not present in —
(1) Hirudinaria
(2) Pheretima
(3) Neanthes
(4) None of these

14. How many pairs of elytra are found on dorsal surface of Aphrodite ?
(1) 15 pairs
(2) 16 pairs
(3) 30 pairs
(4) 32 pairs

15. Excretory organ of Pila is
(1) Osphradium
(2) Keber’s organ
(3) Organ of Bojanas
(4) Redula

16. Aristotle’s lantern is found in:
(1) Star fish
(2) Sea anemone
(3) Sea urchin
(4) Sea mouse

17. Which one is a connecting link between Annelida and Mollusca ?
(1) Nautilus
(2) Neopilina
(3) Peripatus
(4) Lymnaea

18. The type of parthenogenesis, in which male develops from unfertilised egg and the female from fertilised egg, is known as:
(1) Gynogenesis
(2) Arrhenotoky
(3) Thelytoky
(4) Androgenesis

19. Ink gland present in
(1) Sepia
(2) Mytilus
(3) Pila
(4) All of these

20. Laurer’s canal is present in
(1) Taenia
(2) Fasciola
(3) Ascaris
(4) None of these

21. Class Cephalopoda includes animals which have —
(1) Radial body symmetry
(2) Notochord extends upto head
(3) Foot located on head
(4) Head fused with thorax

22. In Amphioxus, Coelom is
(1) Pseudocoelom
(2) Schizocoelic
(3) Enterocoelic
(4) Absent

23. Hatschek’s nephridium is found in
(1) Alimentary canal of Herdmania
(2) Neural gland of Herdmania
(3) Oral hood of Branchiostoma
(4) Collar of Balanoglossus

24. Swim bladder or air bladder is absent in
(1) Harpodon (Bombay duck)
(2) Cyprinus (Carp)
(3) Labeo (Rohu)
(4) Wallago (Lachi)

25. Dental formula in Elephant is
(1) (1:0:0:3)/(0:0:0:1)
(2) (1:0:0:3)/(0:0:0:3)
(3) (1:0:3:0)/(0:0:3:0)
(4) (1:0:0:0)/(0:0:0:1)

26. Which of the following amphibian are aquatic throughout life ?
(1) Ambystoma
(2) Xenopus
(3) Salamandra
(4) Siren

27. Which of the following is found only in India and is on the verge of extinction?
(1) Crocodylus
(2) Alligator
(3) Gravialis
(4) Caiman

28. Extreme or total neoteny is not found in
(1) Necturus
(2) Siren
(3) Proteus
(4) Axolotl larva

29. What is absent in body wall of Balanoglossus ?
(1) Epidermis
(2) Dermis
(3) Basement membrane
(4) Goblet gland cells

30. Which of the following is not an aquatic mammal ?
(1) Dolphin
(2) Seal
(3) Whale
(4) Penguin

31. “True Horns” are found in
(1) Deer
(2) Giraffes
(3) Rhinoceros
(4) Goat

32. Cranium is a constituent of
(1) Dermatocranium
(2) Splanchocranium
(3) Visceral skeleton
(4) Neurocranium

33. Oesophagus in adult vertebrates is derived from
(1) Primitive gut
(2) Fore gut
(3) Mid gut
(4) Hind gut

34. In reptilian heart is found
(1) 2 auricles and 2 ventricles
(2) 2 incomplete auricles and 2 ventricles
(3) 2 auricles and 2 incomplete ventricles
(4) 2 incomplete auricles and 2 incomplete ventricles

35. Wolffian body is —
(1) Archinephros
(2) Pronephros
(3) Mesonephros
(4) Metanephros

36. Cranial nerve “Trochlear” in vertebrates originates from
(1) Side of medulla
(2) Side of midbrain
(3) Floor of medulla
(4) Floor of midbrain

37. Accessary sex glands are found in
(1) Fish
(2) Amphibia
(3) Reptilia
(4) Aves

38. In cobra, fangs are —
(1) Solenoglyphous
(2) Proteroglyphous
(3) Opisthoglyphous
(4) Absent

39. The faecal matter of birds extensively used as fertilizer is called
(1) Bulano
(2) Cervico
(3) Guano
(4) Phosphorum

40. Ampulla of Lorenzini is a
(1) Chemoreceptor
(2) Thermoreceptor
(3) Mechanoreceptor
(4) Photoreceptor

41. Kidney of anamniotes is :
(1) Pronephros
(2) Mesonephros
(3) Metanephros
(4) Archinephros

42. Single-lobed Swim-bladder is present in :
(1) Neoceratodus
(2) Protopterus
(3) Pristis
(4) Sphyrna

43. Number of cranial nerves present in amniotes :
(1) 5 pairs
(2) 10 pairs
(3) 12 pairs
(4) 15 pairs

44. Which one. of the following male mammals lacks dentition, scrotal sac, external pinna and has functional mammary glands without teats ?
(1) Perameles
(2) Echidna
(3) Macaca
(4) Erinaceus

45. ‘Blind Spot’ is present in frog’s eye. Which of the following is incorrect for ‘Blind Spot’ ?
(1) it lacks rods
(2) it lacks cones
(3) does not form an image
(4) forms distinct image

46. Synsacrum in fowl] consists of
(1) 12 fused vertebrae
(2) 24 fused vertebrae
(3) 16 fused vertebrae
(4) 10 fused vertebrae

47. In polylecithal eggs, cleavage is
(1) Equal holoblastic
(2) Unequal holoblastic
(3) Meroblastic and discoidal
(4) Superficial

48. Ova of all placental mammals including human are
(1) Alecithal
(2) Mesolectithal
(3) Polylecithal
(4) centrolecithal

49. In which of the following animals Biradial cleavage pattern is found ?
(1) Annelids
(2) Molluscs
(3) Echinoderms
(4) Ctenophora

50. Which type of cleavage is found in centrolecithal eggs ?
(1) Superficial cleavage
(2) Meroblastic cleavage
(3) Unequal holoblastic cleavage
(4) Equal holoblastic cleavage