A Researcher Removed Predatory Starfish from Sections of Intertidal Rock

question 1

Multiple Choice

A researcher removed predatory starfish from sections of intertidal rock and found that the number of prey species decreased by 50 percent relative to control plots within a short time. This indicates that

• A) predators compete with prey for space.
• B) predator species are competing for prey.
• C) starfish predation increases prey diversity.
• D) starfish predation reduces prey diversity.

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