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In a growing population of a country
- a)Pre-reproductive individuals are more than the reproductive individuals.
- b)reproductive individuals are less than the post reproductive individuals.
- c)reproductive and pre-reproductive individuals are equal in number.
- d)pre-reproductive individuals are less than there productive individuals.
Correct answer is option 'A'. Can you explain this answer?
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In a growing population of a countrya)Pre-reproductive individuals are...
Explanation:
A growing population of a country means that the number of individuals is increasing with time. In such a population, the age distribution of individuals can be classified into three categories:
1. Pre-reproductive individuals: Individuals who are below the age of reproductive maturity, i.e. they have not yet attained sexual maturity to produce offspring.
2. Reproductive individuals: Individuals who have attained sexual maturity and are capable of producing offspring.
3. Post-reproductive individuals: Individuals who have crossed the age of reproductive maturity and are no longer capable of producing offspring.
In a growing population, the correct answer is option A, i.e. pre-reproductive individuals are more than the reproductive individuals. This is because:
• Pre-reproductive individuals form the largest age group in a growing population. They are born at a constant rate and add to the population.
• Reproductive individuals form a smaller age group as compared to pre-reproductive individuals. They are produced by pre-reproductive individuals and are added to the population at a slower rate.
• Post-reproductive individuals form the smallest age group as compared to pre-reproductive and reproductive individuals. They are produced by the reproductive individuals and are added to the population at an even slower rate.
Thus, in a growing population, the number of pre-reproductive individuals is always more than the number of reproductive individuals. As the pre-reproductive individuals attain reproductive maturity, they add to the reproductive age group and the population continues to grow.
A growing population of a country means that the number of individuals is increasing with time. In such a population, the age distribution of individuals can be classified into three categories:
1. Pre-reproductive individuals: Individuals who are below the age of reproductive maturity, i.e. they have not yet attained sexual maturity to produce offspring.
2. Reproductive individuals: Individuals who have attained sexual maturity and are capable of producing offspring.
3. Post-reproductive individuals: Individuals who have crossed the age of reproductive maturity and are no longer capable of producing offspring.
In a growing population, the correct answer is option A, i.e. pre-reproductive individuals are more than the reproductive individuals. This is because:
• Pre-reproductive individuals form the largest age group in a growing population. They are born at a constant rate and add to the population.
• Reproductive individuals form a smaller age group as compared to pre-reproductive individuals. They are produced by pre-reproductive individuals and are added to the population at a slower rate.
• Post-reproductive individuals form the smallest age group as compared to pre-reproductive and reproductive individuals. They are produced by the reproductive individuals and are added to the population at an even slower rate.
Thus, in a growing population, the number of pre-reproductive individuals is always more than the number of reproductive individuals. As the pre-reproductive individuals attain reproductive maturity, they add to the reproductive age group and the population continues to grow.
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In a growing population of a countrya)Pre-reproductive individuals are more than the reproductive individuals.b)reproductive individuals are less than the post reproductive individuals.c)reproductive and pre-reproductive individuals are equal in number.d)pre-reproductive individuals are less than there productive individuals.Correct answer is option 'A'. Can you explain this answer?
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