When estimating plant cover, students need to use keys to reliably identify the species they encounter. Which statement about the dichotomous (taxonomic) key system is most accurate?单项选择题

题目图片
A

A. It eliminates all species sequentially in order from most to least abundant in community.

B

B. It uses variation in morphological characteristics to eliminate species sequentially until only one possibility remains.

C

C. It uses variation in morphological characteristics to identify species.

D

D. It sequentially eliminates morphologically similar species.

E

E. It uses variation in plant size to eliminate species sequentially until only one possibility. remains.

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