Question

Mention the secondery sex characteristics for girls and for boys

Answer 1

SECONDARY SEXUAL CHARACTERSTICS ARE THE FEATURES APPEARS DURING ACHIEVEMENT OF PUBERTY IN HUMANS.SECONDARY SEXUAL CHARACTERSTICS ARE EVIDENT IN SEXUALLY DIMORPHIC SPECIES LIKE HUMANS.IT IS THE BYPROCDUCT OF SEXUAL SELECTION.SECONDARY SEXUAL CHARACTERSTICS ARE DEVELOPED BY THE ACTION OF SEXUAL HORMONES .TESTOSTERONE RESPONSIBLE FOR THE MALE SECONDARY SEXUAL CHARACTERSTICS AND ESTRADIOL IS RESPONSIBLE IN FEMALES.

1.SECONDARY SEXUAL CHARACTERSTICS IN MALES

1.TESTOSTERONE DIRECTLY INCRESASES THE SIZE AND MASS OF MUSCLES ,BONES VOCAL CORDS

2.TALLER STATURE

3.BODY HAIR GROWTH IN UNDER ARM,ABDOMEN,CHEST

4.APPEARENCE OF PUBIC HAIR

5.FACIAL HAIR GROWTH

5.BRODENING OF SHOULDER

6.DEEPENING OF VOICE

7.ENLARGEMENT OF LARYNX

8.GROWTH OF SKULL AND BONES

9.INCREASED SECREATION OF SWEAT

10. INCREASED BONE MASS.

2.SECONDARY SEXUAL CHARACTERSTICS IN FEMALES

1.ENLARGEMENT OF BREAST

2.NIPPLE ERECTION

3.BODY HAIR GROWTH

4PUBIC HAIR GROWTH AND HAIR IN UNDER ARM

5.WIDENING OF HIPS

6HYPEREXTENSION OF ELBOWS

5.MENARCHE(*STARTING OF MENUSTRATION)

6.RAPID GROWTH OF UTERUS

7.LABIA MINORA GROW PROMINENTLY AND CHANGE IN COLOUR AND INCREASED STIMULATION.