(a) State one advantage of variation to a species. (b) What are sex chromosomes? How many sex chromosomes are there? Name them.
BiologyClass 10ICSEAnswered 27 Mar 2026
Answer
(a) The increase in the chances of the species' survival in a changing environment is the advantage of variation to a species.
(b) The chromosomes that determine the sex of a person are called sex chromosomes. There are two types of sex chromosomes, the X chromosome and the Y chromosome. XX determines the male and XY determines the female in human beings.
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