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Class 12 Biology Chapter 13 Organisms And Populations Quiz 2 (25 MCQs)

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1. Ecological niche is:
2. According to Allen's Rule the mammals from the colder climate have
3. A system comprising all the biotic and abiotic factors in an area and all the interactions among them
4. A group of interacting individuals of the same species located in the same area
5. Mycorrhizae are the example of .....
6. What is the lowest level of organization of the biosphere, or the one that has the fewest members?
7. Something that is needed by organisms and is not infinite in its abundance in the environment; if it is exhausted, then the organisms that need it cannot survive
8. Ecology takes into account only
9. A few organisms can tolerate and thrive a wide range of temperature. Such animals are called ..... A vast majority of animals are restricted to a narrow range of temperature. Such animals are called .....
10. What is the difference between the biotic and abiotic factors?
11. To fully understand a plant or animal population, researchers need to know the population's ..... the number of males and females of each age a population contains.
12. Which of the following best describes a population?
13. All of the following are examples of living things interacting with each other EXCEPT-
14. Siblings trying to seek the attention of their parents or grandparents is an example of
15. Lizards and cacti are BIOTIC factors in a desert ecosystem. Which ABIOTIC factors do they depend on?
16. Ever since the Industrial Revolution, human population has generally:
17. Ecology is basically concerned with four levels of biology organizations. These levels are-
18. Which of the following shows an ABIOTIC factor interacting with a BIOTIC factor in the environment?
19. A self-contained living thing
20. Scenario:Rabbits eat plants.Rabbits (organism) and plants (factor) have what type of relationship?
21. Which of the following accounts for the formation of major biomes?
22. A dog is an example of a(n)
23. An organism's place in the biotic environment and its role in an ecosystem is
24. The interaction found between sea anemone and clown fish is
25. What does an ecosystem consist of?
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