SAT Subject Biology Practice Question 235: Answer and Explanation

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Question: 235

5. An invasive species is likely to encounter fewer of which of the following in its new ecosystem?

I. Ecological niches

II. Predators

III. Suitable food sources

A. I only
B. II only
C. III only
D. I and III
E. II and III

Correct Answer: B


An invasive species thrives in an ecosystem because it lacks predators. It will have suitable food sources and ecological niches to exploit.

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