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QuizMultiple Choice

Succession and Extinction

Question 1 • NY-Life Science: BiologyTerm 2 Hillcrest

Which statement best describes ecological succession?

Answer
A
It is always caused by human intervention.
B
It occurs after a disturbance.
C
It never occurs in a predictable pattern.
D
It is a series of rapid changes in an ecosystem.

Explanation

Ecological succession is the gradual change in an ecosystem’s community over time, often after a disturbance such as a fire or flood. So “It occurs after a disturbance” is the best description. Succession can also happen without a disturbance, and it generally follows patterns rather than being a series of rapid changes.

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