Many of the earth animals have already died out, and several other species endangered.
地球上许多物种已经灭绝, 另外一些也已濒临灭绝的边缘.
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Many of the earth's animals have already died out; and several other species endangered.
地球上许多物种已经灭绝, 另外一些已濒临灭绝的边缘.
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Objective To investigate the kinds of isolates and the causes of bloodsream infection.
目的研究血液感染的微生物种类和病因.
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Conservationists are making efforts to save the rare species from extinction.
环境保护主义者正在努力抢救稀有物种,使其免于灭绝.
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物种多样性对于生产力和稳定性的作用机制并不相同,超产和稳定性之间并不必然存在联系.
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The variety of the species is necessary for the balance of ecological system.
物种的多样性是生态系统平衡所必需的.
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Remain unused for almost 50 years, Savillarow, therefore, reserves good ecologic resources.
近50年的土地封存, 让“梦都-岭上林里”得以拥有非常良好的生态物种资源.
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Isoenzyme ( isozyme ) An enzyme that occurs in different structural forms within a single species.
同功 酶:是某一物种中具有不同的结构类型的一类酶.
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The species that make up natural ecosystems usually display a wide range of genetic variability.
构成自然生态系统的生物种,通常表现有较大范围的遗传变异性.
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群系可以按其优势物种的特征划分为一些次级的群落类型.
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Kuanghua Village at mid-to-low elevation and has a wealth of flora and fauna.
光华村位于中低海拔交界,物种特别丰富.
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However, remained because they were able to fit in with their surroundings.
然而, 另一些物种继续生存下来,因为它们能适应环境.
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廉价的化肥以及经过改良的作物种子缓解了海外许多农产品地区的不足.
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International trade is one of the major threats to survival of species wild fauna and flora.
国际贸易是造成物种濒危的主要因素之一.
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Ireland has a smaller range of native and fauna than elsewhere in Europe.
与欧洲其它地方相比,爱尔兰当地的动植物种类较少.
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植物种子中的脂肪酸成分可通过人为遗传调控发生改变.
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