填空题

Birth rates decline, and mortality of young and adults increases when the population approaches______.

【参考答案】

the limit of resources
<上一题 目录 下一题>
热门 试题

填空题
The abundance of plant predators, or herbivores, directly influences ______.
填空题
The short-lived, rapidly dispersed species are often called ______.
相关试题