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Question: Answered & Verified by Expert
In a graph of population, with time on X-axis and population on Y-axis is plotted. A parallel line to X-axis shows:
BiologyOrganisms and PopulationsNEET
Options:
  • A Natality equal to mortality
  • B Natality decreases, mortality increases
  • C Natality constant, mortality increases
  • D Natality increases, mortality decreases
Solution:
2990 Upvotes Verified Answer
The correct answer is: Natality equal to mortality
Natality rate, also called birth rate for a population. It is a measure of number of births occurring in a population in a particular time period. It is denoted by letter B.

Mortality rate is the measure of number deaths in a particular population for a particular time period. It is denoted by letter D.

As per the graph, the population is maintained where in the population count is remains stable. Such scenario occurs when the birth rate is same as that of the death rate. Thus, natality is equal to mortality.

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