SSC
BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When death rate is equal to birth rate ____
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population increases
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population decreases
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population stays the same.
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population rapidly increases then becomes stable
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Explanation:
Detailed explanation-1: -If natality and mortality are equal, the population will remain constant. So, there will be zero population growth.
Detailed explanation-2: -In the long term, zero population growth can be achieved when the birth rate of a population equals the death rate. That is, the total fertility rate is at replacement level and birth and death rates are stable, a condition also called demographic equilibrium.
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