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High School Biology Practice Test: Ecology (Fill in the blank)
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Avg score: 75% • Most missed: “The chief cause of global warming is the increase of __________ in the atmospher…”
High School Biology Practice Test: Ecology (Fill in the blank)
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10 Questions

1. Organic debris at the bottom of a lake is termed _________.

2. Areas of the ocean where oxygen levels are too low to support life are known as __________.

3. All tiny aquatic organisms that cannot move on their own are called __________.

4. __________ succession occurs in an area that has never before been colonized.

5. Precipitation that runs over the ground is called __________.

6. The role of a species in its ecosystem is its __________.

7. The chief cause of global warming is the increase of __________ in the atmosphere.

8. The largest population size that can be supported in an area is the __________.

9. The dark lower layer of ocean water is named the __________ zone.

10. Plants give off water vapor in the process of __________.

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