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by consuming large numbers of sea urchins,sea otters act as a keystone species structuring the kelp forest community.4559
人气:459 ℃ 时间:2020-07-04 19:57:39
解答
by consuming large numbers of sea urchins,sea otters act as a keystone species structuring the kelp forest community
【由于食用大量的海胆类生物,海獭构成了藻丛群落中的一类关键物种.】
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