Zoology - Organisms and Population Book Back Questions

12th Standard EM

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Biology

Time : 00:45:00 Hrs
Total Marks : 30
    5 x 1 = 5
  1. All populations in a given physical area are defined as

    (a)

    Biome

    (b)

    Ecosystem

    (c)

    Territory

    (d)

    Biotic factors

  2. Organisms which can survive a wide range of temperatuer are called

    (a)

    Ectotherms

    (b)

    Eurytherms

    (c)

    Endotherms

    (d)

    Stenotherms

  3. Which of the following is an r-species

    (a)

    Human

    (b)

    Insects

    (c)

    Rhinoceros

    (d)

    Whale

  4. The relationship between sucker fish and shark is__________

    (a)

    Competition

    (b)

    Commensalism

    (c)

    Predation

    (d)

    Parasitism.

  5. Animals that can move from fresh water to sea called as______

    (a)

    Stenothermal

    (b)

    Eurythermal

    (c)

    Catadromous

    (d)

    Anadromous

  6. 3 x 2 = 6
  7. What is a Habitat?

  8. What is Acclimatisation?

  9. What is Zero Stress?

  10. 3 x 3 = 9
  11. Classify the aquatic biomes of Earth.

  12. Differentiate J and S shaped curve

  13. What is ecological density, crude density and population density?

  14. 2 x 5 = 10
  15. Give an account of the properties of soil.

  16. Describe Growth Models/Curves.

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