NEET Biology question

The density of a population in a given habitat fluctuates due to changes in certain basic processes. Fill boxes A and B in the flow chart: A --(+)--> Population Density (N) --> B.

(A)A-Natality, B-Mortality
(B)A-Immigration, B-Emigration
(C)A-Natality, B-Immigration
(D)Both (a) and (b)Correct

Answer: (D)

Solution

The standard NCERT figure shows two pairs of arrows acting on population density — natality and mortality acting as one pair (natality adding to N, mortality subtracting from it) and immigration and emigration acting as the other matching pair

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Question ID VK-126394