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Most ecologists believe that ancient populations of chipmunks diverged genet
Most ecologists believe that ancient populations of chipmunks diverged genet
游客
2025-02-06
24
管理
问题
Most ecologists believe that ancient populations of chipmunks
diverged
genetically when isolated from one another by mountains and unfavorable ecological habitat. These scattered populations first evolved into races—adapted to the local ecological conditions—and then into species, reproductively isolated from
one another
. This period of evolution was relatively recent, as evidenced by the similar appearance of all the western chipmunk species. [br] The phrase "
one another
" in the passage refers to
选项
A、populations
B、races
C、ecological conditions
D、species
答案
D
解析
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