biological species

• 生物种

biological species的用法和样例：

例句

1. And when Mayr came up with his biological species concept, it seemed to exclude many microbes.
   麦尔提出生物种观念时，似乎就把许多微生物排除在外。
2. 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。