无数生物物种的灭绝引起了人们的深切关注，使人们认识到保护濒临灭绝的珍稀动植物的特殊重要性。
The extinction of myriad biological species aroused deep concern which led people to an understanding of the special importance of protecting rare animals and plants on the brink of extinction.
第一个和第三个可能是生物群落结构的关键因素；也就是说，所有的生物种群都生活在一起，并且它们可能在一个特定的区域内相互作用。
The first and the third can be key factors in the structure of a biological community; that is, all the populations of organisms living together and potentially interacting in a particular area.
太平洋岛屿因其令人赞叹的繁杂生物种类和与热带植物的联系而出名。
Pacific islands were notable for their impressive biotic mix and association with tropical plants.
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