State one change in the body shape of grown up boys and one changes in the body shape of grown up girls which makes them look different.
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Changes observed in grown up boys/girls
Explanation:
Secondary sexual characteristics are the physical changes which develop at puberty and help in distinguishing between boys and girls. Testosterone is the male sex hormone responsible for masculine secondary sexual characteristics and Estrogen is the reproductive hormone in females.
One distinctive feature that allows us to differentiate between a grown up boy and girl are:
Facial hair in boys, development of breasts in girls.
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