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Characteristics of body  which help to distinguish between male and females are called sexual characters

 

They are of 2 types

 

Primary Sexual Characteristics

The sexual characteristics which are present at birth are called primary sexual characteristics

They help to distinguish male and females

These are the different reproductive organs of males and females

Example

Males have penis and testes

Females have uterus, ovaries and oviducts

Image - Merge Penis and Ovaries from chapter 9 class 8

 

Secondary Sexual Characteristics

The sexual characteristics that are not present at birth but develop later at time of puberty

They also help to distinguish between males and females

 

Examples

In males

  • Growth of facial hair i.e moustaches and beard
  • Shoulders and chest become broad
  • Adam’s apple develops in front of throat
  • They develop a deep or a hoarse voice

 

In Females

  • Development of breast
  • Hips broaden and become more curved
  • They develop a High pitched voice

Make image of primary and secondary

 

 

Questions

NCERT Question 9 (3) - Word game : Use the clues to work out the words.

Protruding voice box in boys

View Answer

 

 

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CA Maninder Singh is a Chartered Accountant for the past 13 years and a teacher from the past 17 years. He teaches Science, Economics, Accounting and English at Teachoo