2. 职称英语
  3. 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  27
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
转载请注明原文地址:https://www.tihaiku.com/zcyy/3944707.html
相关试题推荐
随机试题
最新回复(0)