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Ecology Quiz 264 (20 MCQs)

Quiz Instructions

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1. The total variety of living organisms in the world is known as
2. During ecological succession, which of the following would be the last things to develop in an area?
3. An inactive state during which normal body activities slow.
4. If one species is helped, and one is NOT affected, what is the relationship?
5. The nitrogen found in the atmosphere is not in a form that plants or animals can use. What converts it into a usable form?
6. Which of the following is an example of a biotic factor of an ecosystem?
7. When aquatic organisms die, they sink to the bottom, so water near the bottom may contain more nutrients than water at other depths.
8. The phenomenon by which toxins concentrate in the organisms at higher trophic levels within an ecosystem is known as .....
9. Which organisms convert nitrogen to a usable form for plants and animals?
10. Organisms that eat other organisms to gain energy.
11. The movement of water through Earth, its atmosphere and living things
12. The kangaroo rat is able to get all of the water it needs through it's food and therefore, never needs to drink liquid. This animal has adapted to survive in which biome that rains less than 2 inches a year?
13. A ..... includes the INTERACTIONS all living and non-living things in an environment.
14. In Southern California, the intentional reduction of the coyote population has led to a decrease in the types of song birds in that area. Which is a likely explanation why song bird populations have decreased?
15. A group of organisms that are the same species and live in the same area is known as what?
16. Which of the following adaptations would you see from an animal that lives in a desert biome?
17. Which of the following is a symbiotic relationship?
18. Bacteria are unicellular
19. A specific source of pollution is known as
20. The Australian pitcher plant (Cephalotus follicularis) is a green plant that traps and feeds on flies and other live insects. What is this plant's mode of nutrition?
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