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Which of the following best describes how a change in the amount of sunlight reaching a forest floor can affect the whole ecosystem?.
- A.It only changes the temperature of the soil.
- B.It alters the growth rate of plants, which then changes the food available for herbivores and the oxygen produced for all organisms.
- C.It has no effect because animals can move to other areas.
- D.It only affects the animals that live in the canopy.
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