SAT Subject Biology Practice Question 314: Answer and Explanation

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Question: 314

4. A barren, rocky community near a lake has virtually no vegetation or animal life. After a period of approximately 75 years, the community boasts a wide variety of flora and fauna, including deciduous trees, deer, and raccoon.

The process which has taken place can best be described as

A. progression
B. succession
C. evolution
D. habitation
E. colonization

Correct Answer: B


B The development of a thriving ecosystem from a barren area is known as succession. Note that evolution usually has a much longer time frame than succession.

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