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Monday, May 9, 2011

Online Free Zoology Test UPSC IAS

Online Free Zoology Test UPSC IAS
Zoology - Zoology Exam Model test for IAS
Free Online Upsc Ias Practice and Preparation Test Zoology
1. Which one of the following is a feature of blood vascular system in Amphioxus?
(a) Heart is present but there are no arteries or veins
(b) Heart is absent and there is no distinction between arteries and veins
(c) Heart, arteries and veins are present
(d) Heart is absent but arteries and veins are present
Ans. (b)

2. The tunicin in ascidian is similar to
(a) Mucin
(b) Cellulose of plants
(c) Lime
(d) Dentine to teeth
Ans. (b)

3. The correct sequence of various sub-layers in the epidermis of vertebrate integument starting from outside is:
(a) Stratum germinativum, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum
(b) Stratum germinativum, stratum corneum, stratum granulosum, stratum lucidum
(c) Cuticle, endodermis, dermis, hypodermis
(d) Stratum corneum, stratum lucidum, stratum granulosum, spinsum, stratum germinativum
Ans. (d)

4. Which one of the following groups of mammals is considered to be toothless?
(a) Echidna, whalebone whales, anteaters and platypus
(b) Whales, marsupials, anteaters and platypus
(c) Bat, whales, marsupials and Echidna
(d) Echidna, whales, bat and platypus
Ans. (a)

5. Viviparity is a common phenomenon in mammals.
However members of one order of the class are exception.
They do not give birth to young ones. Which one of the following orders constitutes the exception?
(a) Sirenia
(b) Cetacea
(c) Monotremata
(d) Dermoptera
Ans. (c)

6. Which one of the following pairs is correctly matched?
Copulatory organs Animals
(a) Claspers — Elasmobranch fish
(b) Gonopodium — Male snakes
(c) Hemipenis — Crocodiles
(d) Penis — Telecostean fish
Ans. (a)

7. Neustons are the organisms which
(a) Rest on the bottom of water
(b) Can float on water
(c) Rest or swim on the surface of water
(d) Can swim in water
Ans. (c)

8. Which one of the following statements is correct? In pigeons?
(a) Both inspiration and expiration are caused by the movement of pectoral muscles during flight
(b) Both inspiration and expiration are caused by the movement of pectoral muscles at the time of rest
(c) Inspiration is caused by the movement of abdominal muscles and expiration by intercostals muscles at the time of rest
(d) Inspiration is caused by the movement of intercostals muscles and expiration by abdominal muscles during flight
Ans. (a)

9. The main excretory organelle in Amphioxus is
(a) Solenocytes
(b) Brown funnels
(c) Hatchet’s nephridium
(d) Atrium
Ans. (c)

10. Consider the following
1. Parapsida
2. Anapsida
3. Diapsida
4. Rhyncocephalia
5. Chelonia
6. Cotylosauria
The correct sequence of text representing hierarchical order for extant tortoises under class Reptilia is
(a) 1, 3, 5
(b) 3, 5
(c) 2, 3, 6
(d) 2, 5
Ans. (d)

11. Consider the following dental formula
I 3/3 C 1/1 Pm 4/5 M 3/3
This dental formula belongs to order
(a) Chiroptera
(b) Dermoptera
(c) Pholidata
(d) Insectivora
Ans. (c)

12. Trochophore larve differs from Tornaria larva in having
(a) Ciliary bands
(b) Nephridia
(c) Apical ciliary plate
(d) Mouth and anus
Ans. (b)

13. The following cranial nerves originate from the brain of a fish
(i) Oculomotor
(ii) Trochlear
(iii) Trigeminal
The correct sequence of these nerves is
(a) i, ii, iii
(b) i, iii, ii
(c) ii, i, iii
(d) iii, i, ii
Ans. (a)

14. Consider the following statement associated with an ascidian
(i) The external covering surrounding the animal is a leathery translucent test or tunic composed of tunicin.
(ii) The foot is made entirely of test that has clear matrix with branchial tentacles.
(iii) The vascular ampullae form vascular areas of bright red patches on the test.
Which of the above statements are correct?
(a) i, ii and iii
(b) i and ii
(c) ii and iii
(d) i and iii
Ans. (d)

15. Which one of the following is the correct sequence of blood flow in Herd mania?
(a) Ventral aorta — Heart — Dorsal aorta — Branchial vessel
(b) Ventral aorta — Dorsal aorta - Heart —Branchial vessel
(c) Branchial vessel — Dorsal aorta - Ventral aorta — Heart
(d) Heart — Dorsal aorta - Ventral aorta — Branchial vessel
Ans. (a)

16. Match list-I (animals) with list-Il (class) and correct answer using the codes given below the select the lists:
List-I List-II
A. Ichthyophis 1. Ayes
B. Onchorynchus 2. Mammalia
C. Archaeopteryx 3. Teleostei
D. Ornithorhynchus 4. Amphibia
5. Elasmobranchi
(a) 3 5 1 4
(b) 4 3 2 1
(c) 3 5 4 2
(d) 4 3 1 2
Ans. (d)

17. Reptiles, birds and mammals renb1e in the character of their
(a) Occipital condyles
(b) Amnion
(c) Homeothermy
(d) Poikilothermy
Ans. (b)

18. Which one of the following glands is homologous to the salivary gland of vertebrates?
(a) Poison gland of snake
(b) Sebaceous gland of mammals
(c) Salt gland of bird
(d) Poison gland of toad
Ans. (a)

19. Sclerotic bones are absent in
(a) Birds
(b) Fishes
(c) Lizards
(d) Humans
Ans. (b)

20. In the statement “Reptiles do not possess first, second and X aortic arches” ‘X’ stands for:
(a) Third
(b) Fourth
(c) Fifth
(d) Sixth
Ans. (d)

21. Which one of the following animals does not have lymph hearts?
(a) Salamander
(b) Frog
(c) Calotes
(d) Pigeon
Ans. (d)

22. Which one of the following pairs is correctly matched?
(a) Opisthonephric kidney — Amniote
(b) Metanephric kidney — Amphibia
(c) Aglomerular kidney — Mammal
(d) Loop of Henle — Bird
Ans. (d)

23. Apart from man, the frontal lobe is seen maximally differentiated in
(a) Elephant
(b) Monkey
(c) Chimpanzee
(d) Whale
Ans. (c)

24. The reptilian skull with a single temporal fossa between the post orbital, squamosal and jugal bones is called
(a) Synapsid skull
(b) Diapsid skull
(c) Parapsid skull
(d) Anapsid skull
Ans. (a)

25. Consider the following features
(i) Absence of jaw
(ii) Vestigial eyes
(iii) Feeding on live and dead fishes
(iv) Larval stages are marine
Which one of the following animals has all the above-mentioned features?
(a) Petromyzon
(b) Amphioxus
(c) Myxine
(d) Lampetra
Ans. (a)

26. In Rana tigrina, the centrum of ninth vertebra is different from those of its other vertebrae and it happens to be
(a) procelous
(b) opisthocelous
(c) heterocelous
(d) acoelous
Ans. (d)

27. The lower jaw in some vertebrates is not directly joined to the cranium but is only suspended by the hyomandibular bone. This type of jaw suspension is known as
(a) Amphistylic
(b) Craniostylic
(c) Autodistylic
(d) Hyostylic
Ans. (c)

28. The inability of the frog to live in brackish and saline waters is related to:
(a) non-availability of food
(b) hostile environment for breeding
(c) problems of osmo-regulation
(d) problems of respiration
Ans. (c)

29. The correct sequence of development of mammalian erythrocytes is
(a) Proerythroblast-Normoblast-Reticulocyte-Erythrocyte
(b) Normoblast-Proerythroblast-Reticulocyte-Eaythrocyte
(c) Reticulocyte-Normoblast-Proerythroblast-Erythrocyte
(d) Reticulocyte-Proerythroblast-Erythrocyte-Normoblast
Ans. (a)

30. Which one of the following communicates with each other through the foramen of Panizzae?
(a) Two systemic arches
(b) Skull and cervical vertebra
(c) Cavity of medulla and fourth ventricle
(d) Cavities of diencephalon and cerebral hemisphere
Ans. (a)

31. Which one of the following pairs is not correctly matched?
(a) Mammal — Left fourth aortic arch present
(b) Birds — Right fourth aortic arch present
(c) Reptiles — The third and fourth aortic arches alone are present
(d) Frog — The fourth aortic arches of both sides are present
Ans. (b)

32. Match list-I (animals) with list-II (special features in their circulatory system) and select the correct answer using the codes given below the lists:
List-I (Animal) List-II (Special features in their circulatory system)
A. Rana 1. Loss of the right aortic arch
B. Calotes 2. Carotid labyrinth
C. Columba 3. Jugular anastamosis
D. Oryctolagus 4. Ductus caroticus
(a) 2 1 3 4
(b) 3 4 2 1
(c) 2 4 3 1
(d) 3 1 2 4
Ans. (b)

33. The teeth of saw in the sawfish are formed of
(a) modified fibrous connective tissue of dermis
(b) modified cornified derivatives of the stratum germinativum
(c) placoid scales
(d) keratin layer
Ans. (c)

34. The cavity on the squamosal for the articulation of the lower jaw in mammals is known as:
(a) fenestra
(b) alveolus
(c) acetabulum
(d) glanoid cavity

35. In reptiles, the part of the cloaca receiving excretory and reproductive ducts is called
(a) coprodaeum
(b) urodaeum
(c) proctodaeum
(d) anus
Ans. (b)

36. Which one of the following pairs is not correctly matched?
(a) Scale of shark — Dentine
(b) Feathers of pigeon — Keratin
(c) Beak of pigeon — Rhamphotheca
(d) Hairs of rabbit — Collagen
Ans. (d)

37. Bursa fabricius is a gland which is present
(a) in the urodaeum of cloaca and helps in digestion of adult birds
(b) near the fallopian tube and secretes a hormone for the maturation of ovum in adult mammals
(c) around the prostate gland of mammals and produces pheromones
(d) in young birds, is lymphatic in nature and produces antibodies
Ans. (d)

38. What is true about sweat glands in humans?
(a) Sweat glands are intimately associated with hair follicles
(b) There are emergency excretory structures to give out urea
(c) Human races inhabiting arctic regions, such as Eskimos have the least number of sweat pores per unit area of the skin
(d) Their secretion makes the skin waterproof and making it unsuitable for the micro-organisms to settle on it.
Ans. (c)

39. Even though limbs and girdles are generally not found in snakes, vestiges of the pelvic girdle and hind limbs persist in:
(a) king cobra
(b) sea snake
(c) python
(d) viper
Ans. (c)

40. Which of the following animal are included under Enteropneusta?
(i) Ptychodera
(ii) Cephalodiscus
(iii) Rhabdopleura
(iv) Balanogalossus
Select the correct answer using the codes given below:
(a) i and ii
(b) ii and iii
(c) iii and iv
(d) i and iv
Ans. (d)

41. Which one of the following orders of mammals possesses
homodont dentition
(a) Monotremata
(b) Marsupialia
(c) Chiroptera
(d) Cetacea
Ans. (d)

42. Ganoids scales are present in
(a) Labeo
(b) Anguilla
(c) Amia
(d) Lepidosteus
Ans. (d)

43. Wheel organ and Hatchet’s pit are present in
(a) Myxine
(b) Petromyzon
(c) Herd mania
(d) Branchiostoma
Ans. (d)

44. Which one of the following is neither a fish nor a snake but an amphibian?
(a) Anguilla
(b) Typhlops
(c) Ophiosaurus
(d) Ichthyophis
Ans. (d)

45. Consider the following statements
(i) Didelphis is a pouch mammal.
(ii) Male and female of Echidna have functional mammary gland.
(iii) Macaca mulatta is an anthropoid ape.
(iv) Carnassial teeth are well developed in Rhinoceros.
Which of these statements are correct?
(a) i and ii
(b) i, ii and iii
(c) ii, iii and iv
(d) i, us and iv
Ans. (b)

46. Which one of the following is called a horned toad?
(a) Alytes
(b) Rhacophorus
(c) Phrynosoma
(d) Hyla
Ans. (c)

47. Uropygial gland is not present in
(a) Pavo
(b) Psittacula
(c) Corvus
(d) Struthio
Ans. (d)

48. Consider the following statements:
(i) Tornaria larva of Balanoglossus leads a benthic life.
(ii) Full grown Tornaria larva of Balanoglossus has paired eye spots, apical plates and three ciliated bands.
(iii) Notochord persists throughout live in Balanoglossus.
(iv) Genital wings are absent m Balanoglossus.
Which of these statements are correct?
(a) i and ii
(b) i and iii
(c) ii and iv
(d) iii and iv
Ans. (a)

49. Tiedemann’s body of Asterias is concerned with
(a) reproduction
(b) excretion
(c) production of amoebocytes
(d) digestion
Ans. (c)

50. Consider the following statements
(i) Dicondylic skull is characteristic of all amniotes.
(ii) The horn of Indian Rhinoceros is formed by gluing of epidermal keratin fibres.
(iii) The jaw of placental mammal is formed by a single bone called dentary.
(iv) Sweat glands are absent in Cetacea and Sirenia.
Which of these statements are correct?
(a) i and iv
(b) ii, iii and iv
(c) ii and iii
(d) i and iii
Ans. (b)

1 comment:

  1. Can u please provide some more zoology question for IFS...