Question

What are secondary sexual characters? Explain, also list factors that bring about these changes
in science of 9th please tell I have not done the answer​

Answer 1

Explanation:

The characters that appear during the puberty and adolescence are called secondary sexual characters.

The characters are of two types :-

1. Primary sexual characters
2. Secondary sexual characters

What are they actually :-

1. Primary sexual characters are the characters that are present during the baby is born. The characters through which a baby can be recognised as a boy or a girl are called primary sexual characters.
2. Secondary sexual characters are the characters that appear during puberty and adolescence. Ex :-

• Growth of beard, moustache in boys
• Growth of hair in armpits in both
• Change of voice. In boys it become hoarse and a small change in girls
• Growth of Adams apple in some boys
• Development of Chest in girls
• Development of smell in sweat
• Development of acne
• Growth of genital hair
• Increase in height
• Girls grow faster than boys
• Muscle strength is higher in boys than in girls
• Menstruation in girls
• Checking themselves in the mirror frequently
• Grouping only with peers
• Not listening to elders
• Feeling shy with opposite gender

Secondary sexual characters help in reproduction.

Hope it helps