Like all higher forms of life, the human species relies on sexual reproduction to avoid extinction.
象所有更高形式的生命, 人类物种的依赖于有性繁殖,以避免灭绝的危险.
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The relationship be-tween species diversity and the habitat is also analyzed in this paper.
还分析了物种多样性与生境条件的关系.
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By now it's a truism that we live at a time of almost unparalleled species extinction.
目前的事实是,我们生活在一个几乎前所未有的物种灭绝年代.
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They hope to create allies to unleash against diseases, pests, and invasive species.
他们希望创造出一些新群体来对付疾病 、 害虫和一些有侵害性的物种.
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The two vole species are not abundance than 99 % alike, genetically.
如就基因而言,这两个物种超过99%的部份绝无二致.
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近几十年来, 不少森林再生, 啄木鸟物种享有相应增长.
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Another few years and this species could be wiped off the face of the earth.
再过几年,这一物种就可能从地球上彻底消失。
朗文当代高级英语词典 第6版
Locals say the development would stress the sea lion colony and effect two others nearby.
当地居民说,住宅的开发将威胁到海狮群体的生存,并将对附近的其他两个物种产生影响.
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Species identification for scallop is mostly based on morphological characters.
扇贝的物种鉴定,通常主要是依据形态学标准来进行.
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