Discussion Forum : Reproductive Health
Question - The number of organisms in population are added by
Options:
A .  Immigration
B .  Birth
C .  Emigration
D .  both (a) & (b)
Answer: Option D
:
D
Population growth is the increase in the number of individuals in a population. Population is added by births and immigration. Immigration is when people move to a place and the population of that place increases.

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