SAT Subject Biology Practice Question 314: Answer and Explanation
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
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.