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Proportion of reproductive age group is ...

Proportion of reproductive age group is higher than pre - reproductive groups in

A

triangular age pyramid

B

urn- shaped pyramid

C

bell - shaped age pyramid

D

More than one option is correct

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The correct Answer is:
B
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Assertion : Bell shaped age pyramid represents a stable population. Reason : In a stable population, proportion of individuals in reproductive age group is higher than the individuals in pre-reproductive age group.

Characters of a populations I. proportion of reproducting age group is higher than the individuals in pre-reproductive age group II. Number of post-reproductive individuals are moderate III. Declining or diminshing population Above characters shown indicates which type of age pyramid ?

A population in which number of pre-reproductive individuals is very large, number of reproductive individuals is moderate while post-reproductive individuals are fewer. Which kind of age pyramid is represented by such a population ?

NTA MOCK TESTS-NTA NEET SET 35-BIOLOGY
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  7. Which of the following is characteristic of phylum Ctenophora ?

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  9. Oxidation of one molecule of glucose yields 38 mols of ATP in the prop...

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  10. Ovary is half-inferior in the flowers of

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  11. Which of the following contraceptive devices makes the uterus unsuitab...

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  12. Which of the following can lead to infertility in males

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  13. In which of the following photolysis of water takes place ?

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