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Reaching The Age Of Adolescence

Question

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The table below shows the data on likely heights of boys and girls as they grow in age. Draw graphs height and age for both boys and girls on the same graph paper. What conclusions can be drawn from these graphs?

Age Year

Height (cm)

Boys

Girls

0

4

8

12

16

20

53

96

114

129

150

173

53

92

110

133

150

165

Solution

The graph represents the relation between the age and height of both boys and girls.
From the graph we can conclude that :
During puberty, there is a sudden increase in height of both boys and girls. It can be observed that during the age of 4-8 years, girls have less height as compared to boys. However, as soon as girls reach 12- 13 years, their height shows a sudden increase and becomes more than boys. In later years, growth in both sexes becomes stable.

Some More Questions From Reaching The Age of Adolescence Chapter

What are sex hormones? Why are they named so? State their function.

Choose the correct option.

Adolescents should be careful about what they eat, because

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Reproductive age in women starts when their

Choose the correct option.

The right meal for adolescents consists of

Write notes on :

Adam’s apple.

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Secondary sexual characters.

Write notes on :

Sex determination in the unborn baby.

Word game : Use the clues to work out the words.

Across

3. Protruding voice box in boys

4. Glands without ducts

7. Endocrine gland attached to brain

8. Secretion of endocrine glands

9. Pancreatic hormone

10. Female hormone

Down

1. Male hormone

2. Secretes thyroxine

3. Another term for Teenage

5. Hormone reaches here through blood stream

6. Voice box

7. Term for changes at adolescence.

The table below shows the data on likely heights of boys and girls as they grow in age. Draw graphs height and age for both boys and girls on the same graph paper. What conclusions can be drawn from these graphs?

Age Year

Height (cm)

Boys

Girls

0

4

8

12

16

20

53

96

114

129

150

173

53

92

110

133

150

165

What is the phase of life when the body undergoes changes to attain reproductive maturity called?

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