一般认为,生物种(species)是自然界中实际存在的生物群体单位,同一个种的成员具有相似的形态特征,共同的祖源,在通常情况下生殖隔离,即不与他种杂交,在地球上占有一定的分布区(现时的或历史的)。生物种既是进化的单位,又是生态系统中的功能单位。
我国已经报道的蜜环菌属种有 14个,统称中国生物种(Chinese Biological Species,CBS)(赵俊等 2005;赵俊和赵杰 2007)。
基于4个网页-相关网页
水生物种计划 Aquatic Species Program
野生生物种群统计 Wildlife population statistics
生物种群 biotic population ; biological population ; species population
微生物种群 [微] microbial population ; microorganism species
野生物种 Wild Species
原生物种 ORIGINAL OF THE SPECIES ; the original species ; native species
古生物种 paleospecies ; paleobiospecies
生物种模型 model of biological
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.
我们真诚地希望世界自然基金会能在保护这个濒危的野生物种中发挥作用。
We sincerely hope that WWF can play a role in protecting this endangered species.
然而,对于一种生物种群而言是大灾难的事件,却有可能给另一种生物种群创造机会。
What is a catastrophe for one group of living things, however, may create opportunities for another group.
Well, you might say surely there could be creatures that would want to live forever, that would enjoy an eternal existence.
你们也许会说一定存在某种生物,会希望永远活下去,会享受一种永恒的存在。
That's one of the beauties of proteins as working molecules is that their structure can be changed by subtle means.
蛋白质作为一种生物活性分子,其优势之一是,能够通过精细的方法改变其结构
Now the hope--the hope is that someday there will be biological measure of what people are eating.
现在的希望是,某一天会有一种生物学手段,可用于研究人们吃什么
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