Question

State two secondary sexual characteristics in mature boys and two in mature girls.

Answer 1

Girls:

1)Voice becomes shrill
2)Growth of hair in pubic regions and in the armpits
3)The development of breasts and hips gain weight



Boys:

1) Growth of hair on the face and on the chest
2) Growth of hair under armpits and and pubic region
3)Body Becomes more muscular


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Answer 2

Secondary sexual characteristics

Explanation:

Reproductive maturity or puberty refers to the time when a child's body begins to change and attains the ability to reproduce. The secondary sexual characteristics develop during puberty, around the age of 11 to 15 years, which help distinguish more clearly between male and female.

Changes observed in a boy are:

1. Growth in size of reproductive organs such as penis, scrotum and testicles .
2. Growth of facial (mustache/beard) and body hair.
3. Deepening of voice. (Adam's Apple) .
4. Body becomes more muscular.

Changes observed in a girl are:

1. Growth of breasts.
2. Growth of pubic hair.
3. voice becomes shriller.
4. Onset of menstruation.