Q60 of 130 Page 183

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

Secondary sexual characteristics in mature boys:

(I) Voice becomes deeper (low pitched voice).


(II) Facial hair such as beard and moustache develop.


Secondary sexual characteristics in mature girls:


(I) Development of breast.


(II) Initiation of menstrual cycle.


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59

Name two male sex organs and two female sex organs which develop completely at puberty.

 59

Name two things which may develop on the face of adolescent boy s and girls during puberty due to the increased activity of sebaceous glands and sweat glands in the skin.

 60

Which of the following are secondary sexual characteristics?

Ovaries, Moustache, Penis, Broad hips, Vagina, Beard, Breast, Adam’s Apple, Wide shoulders, uterus, Testes, Deeper voice.

 61

Which of the following are endocrine glands?

Salivary gland, Thyroid gland, Adrenal gland, Sweat gland, Pituitary gland, Sebaceous gland (Oil gland)