Glencoe Biology

Section 2: Flow of Energy in an Ecosystem

Self-Check Quizzes

1.
A (an) ____ collects energy from sunlight or inorganic substances to produce food.
A)heterotroph
B)herbivore
C)detritivore
D)autotroph
2.
The total mass of living matter at each trophic level is called ____.
A)biomass
B)a food chain
C)energy flow
D)an organic compound
3.
How can detritivores be beneficial to the environment?
A)provide food for autotrophs
B)rid waste and dead matter
C)allow predation to occur
D)facilitate photosynthesis in plants
4.
Which of the following statements is true based on the food chain shown here?
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A)Snakes get energy directly through plant consumption.
B)Most insects are autotrophs.
C)Mice and bugs have a parasitic relationship.
D)Energy from photosynthesis will transfer to snake.
5.
How would a population decrease in primary consumers affect the ecosystem?
A)primary producers would suddenly decrease.
B)Third-level consumer population would increase.
C)Third-level consumer populations would eventually decrease
D)There would be no overall effect.
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