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Ecology Quiz 20 (25 MCQs)

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1. As energy is transferred from one trophic level to the next _____ percent of the available energy is lost as heat.
2. Matter can recycle through the biosphere because
3. What is the bottom layer of the an energy pyramid?
4. A model of the complex feeding interactions among organisms in a community from producers to decomposers is called a
5. Another term for a producer. This is an organism that can make its own food by using energy from its surroundings.
6. Any single living thing is call an
7. The many overlapping food chains in an ecosystem make up an
8. Group of individuals of a species that live in the same area is called
9. What is interspecific
10. All the biomes on Earth make up the _____
11. What is a symbiotic relationship in which one species benefits and the other species is harmed?
12. On Earth, water cycles through the atmosphere, oceans, land and organisms. By what process does most of the water in plants return to the environment?
13. What word most closely means the close resemblance of an animal to another animal, plant, or inanimate object?
14. Which is an example of a scavenger?
15. Lakes with an abundance of organic material and low oxygen in the deeper regions are called _____
16. Population refers to.
17. Allopatric species are closely related species that _____, and so are under less pressure to develop adaptations.
18. Ideally, an inventory of an ecosystem should be taken:
19. Two organisms that are so similar they can interbreed and produce fertile offspring are from the same
20. What is bioaccumulation?
21. Which is an example of how biotic and abiotic factors interact?
22. These organisms break down the remains of dead organisms and return their nutrients to the environment
23. Carrying capacity is represented by which letter?
24. _____ is the study of therelationship between organisms and their environment.
25. Biomes are usually named from:
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