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CUET-UG Biology Test: Ecosystem
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CUET-UG Biology Test: Ecosystem
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25 Questions

1. How many levels do carnivores occupy?
2. Maximum absorption of rainfall water is done by
3. In Primary succession on rocks, the pioneer species are usually
4. Out of the total quantity of global carbon, what percent of carbon is found dissolved in oceans?
5. What does the pyramid of energy indicate because of which it is said to be the best representation of an ecosystem?
6. In which of the following aspects the components of the ecosystem are seen to function as a unit?
7. Which of the following is estimated in either the photosynthetic number or chlorophyll content?
8. Climax community is in a state of
9. Chipko movement was launched for the protection of
10. Both hydrarch and xerarch successions lead to
11. The upright pyramid of number is absent in
12. Decomposers are
13. Which ecosystem has the highest primary productivity?
14. The ‘10 percent law’ is related to
15. Which of the following is the decomposer of a pond ecosystem?
16. What is the food chain beginning with host and ending with a parasite (ecto as well as endoparasite) called?
17. Which one of the following animals may occupy more than one trophic levels in the same ecosystem at the same time?
18. Identify the possible link “A” in the following food chain: Plant - Insect - Frog - “A” - Eagle.
19. In which of the following aspects the components of the ecosystem are seen to function as a unit?
20. What is the approximate amount of the annual net primary productivity of the whole biosphere?
21. Which one of the following is not a functional unit of an ecosystem?
22. Pyramid of energy in the river ecosystem is
23. What does a nutrient cycle involve?
24. Term ecosystem was given by
25. What varies in different kinds of ecosystems and also on a seasonal basis?

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