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Question

(a) What is puberty? Who attains puberty at an earlier age in human beings : male or female (boy or girl)?
(b) Mention two functions each of (i) human testes, and (ii) human ovaries.

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Solution

(a) Puberty is the age at which males and females attain sexual maturity. In human beings, females attain puberty earlier than males.

(b) (i) Testes produce male gametes (sperms) and the hormone testosterone which is responsible for secondary sexual changes in males.
(ii) Ovaries produce female gametes (ova or egg) and the hormone oestrogen which is responsible for secondary sexual changes in females.

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