Question

write note (1) sex ratio​

Answer 1

Answer:

The number of females per 1000 males is known as the sex ratio. We generally use sex ratio for calculating the average number of females living in a country.

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Answer 2

The sex ratio is the ratio of males to females in a population. In most sexually reproducing species, the ratio tends to be 1:1. This tendency is explained by Fisher's principle.[2] For various reasons, however, many species deviate from anything like an even sex ratio, either periodically or permanently. Examples include parthenogenic species, periodically mating organisms such as aphids, some eusocial wasps such as Polistes fuscatus and Polistes exclamans, bees, ants, and termites

Explanation:

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