The period at which an organism attains sexual maturity is called _____________

(a)

puberty

(b)

adolescence

(c)

growth

(d)

maturity

During puberty, the region below the waist become wider in _____________

(a)

boys

(b)

girls

(c)

Both a and b

(d)

None of these

___________ are the chemical substances, secreted by endocrine glands.

(a)

Hormones

(b)

Enzymes

(c)

Proteins

(d)

Fatty acids

During menstruation, the progesterone level is ___________

(a)

decreased

(b)

increased

(c)

ceased

(d)

normal

___________ intake needs to be increased to prevent osteoporosis in later life.

(a)

Potassium

(b)

Phosphorus

(c)

Iron

(d)

Calcium

What is adolescence?

List out the changes which occur during puberty.

What is fertilization?

How is adolescence differ from childhood?

What are the physical changes that occur in boys and girls during adolescence?

Explain the role of hormones in reproduction.

Briefly describe the menstrual cycle.

Briefly explain the nutritional needs of adolescence.

What can you suggest to your classmates to keep himself/herself clean and healthy?

Adolescence is the energistic stage. What health and good habits you want to develop?