Net population growth rate {reproductive rate} depends on death rate and birth rate. Young, weak, and sick population members have low reproduction. Older population members have high reproduction, producing more offspring and guarding them better. Stronger and more active population members have high reproduction, especially if they start new colonies and occupy new habitats. Species have optimum fertility rates, based on reproductive rates.
Biological Sciences>Biology>Evolution>Reproduction
4-Biology-Evolution-Reproduction
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Date Modified: 2022.0224