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AP Biology/Unit 8: Ecology
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Energy Availability and Ecosystem Disruption

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Which of the following best describes how a change in energy availability can disrupt an ecosystem’s trophic structure and affect its biodiversity?

A

Changes in energy availability only affect primary producers, with minimal impact on higher trophic levels or overall biodiversity

B

Reduced energy availability can cause trophic cascade effects, potentially leading to the collapse of higher trophic levels and decreased biodiversity

C

Increased energy availability always results in higher biodiversity across all trophic levels due to resource abundance

D

Energy availability fluctuations cause uniform changes across all trophic levels, maintaining constant biodiversity ratios

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