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Question

The age structure of a population influences population growth because


A

Different age groups have different reproductive capabilities

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B

Younger females have more offspring than older ones

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C

Shorter generation time results in slower population growth

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D

More the number of immature individuals, slower is the population growth

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Solution

The correct option is A

Different age groups have different reproductive capabilities


The correct option is A.

Explanation of Correct option:

Option A

  1. Individuals who are capable of reproducing are those who contribute to population expansion.
  2. Individuals in the pre-reproductive stage have yet to contribute, while those in the post-reproductive stage have finished reproducing.
  3. As a result, the reproductive capacity of different age groups vary.

Explanation of incorrect option:

Option B

The maturity of the egg determines offspring, not the age of the mother.

Option C

When the generation time is shorter, population increase accelerates.

Option D

Immature individuals cannot contribute to population increase, hence population growth is dependent on mature individuals.

Final answer: The age structure of a population influences population growth because different age groups have different reproductive capabilities.


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