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Ecology Quiz 2 (25 MCQs)

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1. Any organism that feed off of dead organisms recycling the elements into the ecosystem are called?

2. Which of the following levels of organization is the most complex?

3. The levels of organization of the living world include all of the following except

4. Around the planet Earth, all living organisms form a.

5. Humans are affecting the carbon cycle by

6. Marks left by people, animals, or things _____

7. Non-living things in an ecosystem

8. Antonio and Javier are astronauts in space looking back at Earth and discussing how all the life on Earth interacts with each other as well as the nonliving things. What level of organization are they discussing?

9. With each change in trophic level we can expect a _____ % transfer of biomass

10. Most of the energy available to organisms in the second trophic level (primary consumers) is used by organisms for

11. The aphotic zone means that light is.

12. Scientific discipline in which the relationships among living organisms and the interaction the organisms have with their environment are studied.

13. Which two biomes receive the least amount of precipitation.

14. The populations of different organisms living in a defined area are all part of the same

15. Eat plants and animals

16. Which ecosystem is the most resistant to permanent change?

17. This biome has a constant mixing of cold and warm water currents and includes organisms such as whales, sharks, and floating algae

18. The numbers below represent population sizes. Which population is most likely to go extinct?

19. The Red Sea derives its name from the.

20. A relationship between two or more organisms in the same environment is called

21. Which of the following describes a food web?

22. If scientists are studying egrets, herons, marsh crabs and spartina grass, but not the water or the rocks in the salt marsh, what level of ecological organization would they be studying?

23. Scientific discoveries have provided evidence that the _____ systems are involved in behavior.

24. Primary producers are.

25. Major causes of extinction of different species includes

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Ecology Quiz 2 (25 MCQs)

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