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Ecology Quiz 171 (20 MCQs)

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1. Earth's solid rock layer-one of 4 spheres into which scientists divide Earth
2. The term ecologists use to describe the number of individuals moving into a population is
3. Within an ecosystem, there will be more ..... than .....
4. The diagram shows a food chain in a rock pool.seaweed $\rightarrow$ whelks $\rightarrow$ crabs $\rightarrow$ seagullsWhat will happen if the number of secondary consumers increases? There will be
5. Gary wolves and lynx are consumers found in the .....
6. All living things in an ecosystem, including animals, bacteria, plants, fungi, and other living species
7. Which is NOT one of the four steps in Darwin's Theory of Natural Selection?
8. The organisms that make up a community and the nonliving parts of the environment that they interact with are a(n)
9. A population contains
10. What do you call a period of rapid growth?
11. Which biome consists of very low precipitation and can be hot or cold?
12. A snake is eaten by a hawk. The hawk is the .....
13. If several species of carnivores are removed from an ecosystem, the most likely effect on the ecosystem would be:
14. What is the basic unit of the study of nature
15. Plants make their own food
16. What do Herbivores eat?
17. The study of interactions that occur among organisms in their environment.
18. One way a population increases is if there is an increase in the
19. Organisms that cannot make their own food
20. When dead plants decompose and nitrogen is returned to the soil, the interaction is between which two spheres?
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