AP Outline Bio Quiz Ch 25
10 Questions
| Total Attempts: 388
Ch 25 Outline Quiz, Ecosystems & Human Interferences
Questions and Answers
- 1.Which layer is defined by the upper and lower limits where life is possible?
- A.
Atmosphere
- B.
Biosphere
- C.
Lithosphere
- D.
Hydrosphere
- E.
The earth's core
- 2.An ecosystem contains
- A.
Only the biotic components of the environment.
- B.
Only the abiotic components of the environment.
- C.
Only the energy flow components of an environment.
- D.
Both the living organisms and the abiotic components of the environment.
- E.
Only the food relationships found in an environment.
- 3.Approximately what percentage of the energy in one trophic level becomes incorporated into the next level as secondary productivity?
- A.
1%
- B.
10%
- C.
30%
- D.
60%
- E.
100%
- 4.Herbivores are generally more numerous than carnivores.
- A.
True
- B.
False
- 5.All food chains begin with a photosynthetic producer.
- A.
True
- B.
False
- 6.Organisms in all trophic levels may be consumed by decomposers.
- A.
True
- B.
False
- 7.Energy recycling is an important part of every ecosystem.
- A.
True
- B.
False
- 8.A pyramid of biomass is based on the number of organisms at each trophic level.
- A.
True
- B.
False
- 9.Food chains are long and involved, with at least seven or eight trophic levels.
- A.
True
- B.
False
- 10.Nitrogen fixation is the conversion of nitrate to nitrous oxide and nitrogen gas.
- A.
True
- B.
False
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