Competitive Exams: Zoology MCQs (Practice-Test 60 of 112)

  1. Consider the following statements:

    1. In prairie ecosystem, 60 to 90 percent of the net primary productivity and 90 percent of secondary productivity occur in the soil.

    2. In desert ecosystems, micro-arthropods have a very important role in litter decomposition.

    Which of the statements given above is/are correct?

    1. 1 only

    2. 2 only

    3. Both 1 and 2

    4. Neither 1 nor 2

  2. A sucker fish attached to the belly of a shark gets a free ride and feeds on the leftovers of shark. This is an example of which one of the following?

    1. Mutualism

    2. Proto-cooperation

    3. Commensalism

    4. Parasitism

  3. With reference to the adaptation of aquatic fauna, consider the following statements:

    1. Sharks have poorly developed vibration sensitivity.

    2. Sharks have very strong sense of smell and use it to swim up-current through an increasing odour gradient.

    Which of the statements given above is/are correct?

    1. 1 only

    2. 2 only

    3. Both 1 and 2

    4. Neither 1 nor 2

  4. Who of the following developed the concept of niche as an abstract ndimensional hyper-volume?

    1. Arthur Tansley

    2. Engene P. Odum

    3. G. Evelyn Hutchinson

    4. Victor Shelford

  5. With reference to the different kinds of feathers in birds, consider the following statements

    1. Filoplumes are sensory structures that aid in the operation of other feathers.

    2. Bristles occur most commonly around the base of the bill, around the eyes, on the head or even on the toes.

    Which of the statements given above is/are correct?

    1. 1 only

    2. 2 only

    3. Both 1 and 2

    4. Neither 1 nor 2

  6. With reference to adaptation of terrestrial fauna, consider the following statements:

    1. In mammals, eccrine glands are associated with hair follicles.

    2. Except camels, dogs, kangaroos and aquatic mammals, all other mammals thermoregulate by secreting fluid from skin glands for evaporative cooling.

    Which of the statements given above is/are correct?

    1. 1 only

    2. 2 only

    3. Both 1 and 2

    4. Neither 1 nor 2

  7. Which one of the following has a role in the destruction of stratospheric ozone?

    1. Carbon monoxide

    2. Carbon dioxide

    3. Nitrous oxide

    4. Sulphur dioxide

  8. Consider the following animals:

    1. Indian wild ass

    2. Gangetic dolphin

    3. Green sea turtle

    Which of the above is/are the endangered fauna of India?

    1. 1 only

    2. 1 and 2 only

    3. 2 and 3 only

    4. 1, 2 and 3

  9. Consider the following statements:

    1. Porcupine is a rodent.

    2. Rodents have no canine teeth.

    Which of the statements given above is/are correct?

    1. 1 only

    2. 2 only

    3. Both 1 and 2

    4. Neither 1 nor 2

  10. Match List-I with List-II and select the correct answer using the code given below the lists:

    List-I (Common Name) List-II (Zoological Name)
    1. Great Indian bustard

    2. Common kingfisher

    3. Siberian crane

    4. Scavenger vulture

    1. Alcedo athis

    2. Ardeotis nigriceps

    3. Grus leucogeranus

    4. Neophron percnopteris

    • A
    • B
    • C
    • D
      • 2
      • 3
      • 1
      • 4
      • 2
      • 1
      • 3
      • 4
      • 4
      • 3
      • 1
      • 2
      • 4
      • 1
      • 3
      • 2
  11. Which one of the following states that no two species with the same ecological requirements can coexist?

    1. Hardy-Weinberg equilibrium law

    2. Gause principle

    3. Tuckfield maxim

    4. Shelford law of tolerance

  12. Consider the following statements:

    1. Mammary glands are present and potentially functional in male monotremes and eutherians.

    2. In eutherians, mammary hairs are present and mammae develop from areola patches confined to the abdominal region.

    Which of the statements given above is/are correct?

    1. 1 only

    2. 2 only

    3. Both 1 and 2

    4. Neither 1 nor 2

  13. Consider the following characteristics:

    1. Blood containing haemoglobin

    2. The gut is U-shaped

    3. Lophophore

    Which of the above is/are found in

    Phoronida?

    1. 1 and 2 only

    2. 2 and 3 only

    3. 3 only

    4. 1, 2 and 3

  14. In which one of the following an individual organism has two different body parts namely zooecium and the polypide?

    1. Coelenterata

    2. Ectoprocta

    3. Annelida

    4. Echinodermata

  15. With reference to Sycon, consider the Sycon, consider the:

      • Archeocytes
      • Form sperms, eggs and gemnmles
      • Thesocytes
      • Storage cells
      • Trophocytes
      • Secrete slime

    Which of the pairs given above is/are correctly matched?

    1. I and 2 only

    2. 2 only

    3. I and 3 only

    4. 1, 2 and 3