Ecology Quiz 22 (25 MCQs)

Quiz Instructions:

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1. If a plant species grows where no life existed before, this could be the first stage of _____

2. What is the amount of energy that travels from one trophic level to the next?

3. Animals that a variety of meats, fruits, and vegetables are

4. What is the reason an ecosystem is healthier when there are a variety of species?

5. Commensalism can be described as _____

6. A relationship where both species benefit is called

7. The mineral substances in the bodies of organisms are released to the environment by.

8. Relationship in which one organism hunts and eventually eats another.

9. At each level of the energy pyramid, only _____ % of the available energy is passed to the next consumer.

10. Introduced or invasive species are often difficult because:

11. What is a biotic change

12. The Duck Kennel is an example of

13. Which one of the following strongly threatens biodiversity?

14. Type of symbiosis in which the parasite benefits at the expense of the host.

15. The branch of biology dealing with interactions among organisms and between organisms and their environment is called

16. This type of symbiotic interaction involves the death of one of the interacting species

17. What is photosynthesis equation

18. Adaptations are _____

19. Population increases at a constant rate over time.

20. A monkey might interact with which biotic factor in its environment?

21. Why do animals need nitrogen

22. What do you call a group of oak trees in a forest

23. A BIOME that is common at the equator. It has warm temperatures and a LOT of biodiversity.

24. An organism's niche is

25. What does a food web represent?