31
QuizMultiple Choice

Cumulative Exam — Cumulative exam

Question 31 • Science 7 B (M12 25/26 S2)

Which statement best contrasts pioneer species and climax communities?

Answer
A
Pioneer species are involved in the first stage of succession, and climax communities are involved in the final stage of succession.
B
Pioneer species are involved in the final stage of succession, and climax communities are involved in the first stage of succession.
C
A pioneer species will change into a different species in the climax community.
D
A climax community is made up of multiple pioneer species.

Explanation

Ecological succession begins when pioneer species first colonize a new or disturbed area. Over time, the community changes, and the relatively stable community at the end is called the climax community. Thus, choice A correctly contrasts pioneer species in the first stage with climax communities in the final stage.

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