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Question

(a) State two secondary sexual characteristics in mature boys and two in mature girls.

(b) Which of the following are secondary sexual characteristics ?

Ovaries, Moustache, Penis, Broad hips, Vagina, Beard, Breasts, Adam's Apple, Wide shoulder, Uterus, Tastes, Deeper voice.

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Solution

The secondary sexual characteristics in males are:
1)Hairs grow on face in the form of beard and moustache.
2)Shoulders and chest broadens.
3)A deeper voice or low pitched voice.
4)Adam’s apple develops in front of throat in boys.
The secondary sexual characteristics in boys are produced by the male sex hormone called
testosterone made in testes.
The secondary sexual characteristics in females include:
1)Development of breast.
2)Hips broaden and become more curved and prominent in girls.
3)A shrill or high pitched voice in girls.


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