Competitive Exams: Zoology MCQs (Practice-Test 26 of 112)

  1. Which one of the following is a correctly matched pair?

      • Oxyntic cells
      • Mucus
      • Goblet cells
      • HCI
      • Peyer's patches
      • Lymphocytes
      • Succus entericus
      • Part of ilium
  2. Thyroid cartilage is present in the larynx of

    1. Rana

    2. Crocodilus

    3. Chelone

    4. Bufo

  3. Consider the following statements:

    1. Air bladder discharging respiratory function is present in Heteropneustes.

    2. Myoglobin is excessively presenting diving placentals.

    3. The sound producing organ of

    Columba livia is called larynx.

    Which of these statements is/are correct?

    1. 1 only

    2. 2 only

    3. 1 and 3

    4. 2 and 3

  4. The foramen present in the heart of crocodile is

    1. foramen of Panizzae

    2. foramen of Luschka

    3. foramen of Magendie

    4. foramen rotunda

  5. Carotid artery and systemic trunk are connected by

    1. Ductus endolymphaticus

    2. Ductus arteriosus

    3. Ductus caroticus

    4. Stenson's duct

  6. In which one of the following animals the left ventricle of the heart does NOT have chordae tendinae?

    1. Columba

    2. Uromastix

    3. Crocodilus

    4. Oryctolagus

  7. Match List I with List II and select the correct answer:

    List-I (Structure) List-II (Location)
    1. Reissner's membrane

    2. Ora serrata

    3. Columella auris

    4. Ductus endolymphaticus

    1. Eye of Oryctolagus

    2. Ear of Calotes Ear of Scoliodon

    3. Ear of Columba

    • A
    • B
    • C
    • D
      • 4
      • 1
      • 2
      • 3
      • 2
      • 3
      • 4
      • 1
      • 4
      • 3
      • 2
      • 1
      • 2
      • 1
      • 4
      • 3
  8. Thermoregulatory centre in mammals is located in

    1. Pons varoli

    2. Floccular lobes

    3. Hypothalamus

    4. Corpus callosum

  9. Consider the following pairs:

    1. Rudimentary cerebellum: Frog

    2. Olfactory lobe with olfactory peduncle: Oryctolagus

    3. Well developed hippocampus:

    Macrosomatic animals

    Which of these pairs is/are correct matched?

    1. 1 only

    2. 1 and 3

    3. 2 and 3

    4. 2 only

  10. An example of induced (reflex) ovulator is

    1. Oryctolagus

    2. Homo sapiens

    3. Macaca

    4. Presbytis

  11. Generally the largest animals are found in aquatic habitat because

    1. there is more food available

    2. gravity effects are minimized by buoyancy

    3. temperature fluctuations are less drastic

    4. it is easier to maintain homeostasis

  12. The community in which the photosynthesis/respiration (P/R) ratio is generally more than 1 is

    1. fertile rice field

    2. polluted stream

    3. coral reefs

    4. swamps

  13. Among the insects, the highest species diversity is seen in

    1. Coleoptera

    2. Lepidoptera

    3. Diptera

    4. Hymenoptera

  14. With regard to environmental pollution, consider the following statements:

    1. Organic phosphates are degradable chemical insecticides.

    2. Chlorinated hydrocarbons depress photosynthesis of marine phytoplankton but have no adverse effect on aquatic animals.

    3. The atmospheric pollutant ozone causes respiratory distress in man but has no adverse effect on plants.

    4. Sulphur dioxide (SO2) in air absorbs on particulate pollutants.

    Which of these statements are correct?

    1. 1, 2 and 3

    2. 2, 3 and 4

    3. 1 and 4

    4. 1, 2, 3 and 4

  15. Which group of organisms serves as the best indicators of pollutions in a stream?

    1. Plankton

    2. Neuston

    3. Benthos

    4. Nekton