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A female-biased sex ratio or an age structure rich in reproductive-age members can increase:
ACarrying capacity
BThe habitat area
CThe birth rates
DThe death rates
Answer & Solution
Correct answer: C. The birth rates
1. Population growth depends on who is in the population, not only how many.
2. The sex ratio is the ratio of males to females.
3. Age structure is the proportion of population members at specific age ranges.
4. A female-biased sex ratio, or an age structure composed of many individuals of reproductive age, can increase birth rates.
5. Neither changes the carrying capacity of the environment.
_Source: OpenStax Biology 2e (CC BY 4.0), Ch 45 'Population and Community Ecology', sections 45.1-45.4_
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