American Public University / BIOL 180 Quiz 8 Questions and Answers. Latest update. Graded A+

Part 1 of 5 - Chapter 20 30.0 Points

Question 1 of 33
3.0 Points
Why are those at the top of a food chain affected if a species at the bottom of the food chain
consumes a toxin?



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A. species at the bottom enjoy toxins



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B. fat soluble compounds biomagnify





C. water availability decreases





D. species at the top eat more




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Question 2 of 33
3.0 Points
What is the area of Earth where water movement and storage occurs?





A. hydrosphere

, 

B. stratosphere





C. atmosphere





D. troposphere




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Question 3 of 33
3.0 Points
Because the desert has extreme temperatures and a shortage of water, what type of net primary
productivity does it have?





A. high





B. low





C. medium





, D. productive




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Question 4 of 33
3.0 Points
What happens to the amount of energy as it moves between trophic levels?





A. no change





B. stable





C. decreases





D. increases




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Question 5 of 33
3.0 Points
Temperature and precipitation are examples of what in an environment?



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