natural selection
n. [生]自然选择, 物竞天择说
例句与用法:
A systematic long-term change of this kind suggests the action of natural selection and indicates that female skeletal characteristics confer greater fitness. But is this the whole story.
这种长期的系统变化说明自然选择的作用,并表明女性骨骼的特性较大的适应性。但是,情况完全是这样的吗?
词形变化:
名词: natural scientist |
详细释义:
ph.
【生】自然选择; 天择