Read the following statements. (I) In a population, birth r…

Biology Organisms and Populations Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 21, 2026

Read the following statements.

(I) In a population, birth rate and death rate refer to per capita births and deaths, respectively.

(II) In nature, we rarely find isolated single individuals of any species.

(III) The size of population for any species is stable phenomena.

(IV) Ecological effects of any factors on a population growth are generally reflected in its size/population density.

Choose the correct statements.

(I) and (II)

(II) and (III)

(I), (II) and (III)

(I), (II) and (IV)

Text Solution

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The correct answer is:

Birth rate and death rate are measured per capita in population studies.

Species usually exist as populations, not isolated individuals, and ecological factors affect population density.

Statement (III) is incorrect because population size is not always stable; it changes over time.

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