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18 January, 16:47

What is sex ratio? Explain them.

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  1. 18 January, 18:00
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    The sex ratio is the ratio of males to females in a population.

    Explanation:

    It is generally divided into four subdivisions:

    primary sex ratio - ratio at fertilization

    secondary sex ratio - ratio at birth

    tertiary sex ratio - ratio in sexually mature organisms

    quaternary sex ratio - ratio in post-reproductive organisms
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