What is the term used for secretions of endocrine glands responsible for changes taking place in the body?
What is menstruation? Explain.
List the changes in the body that take place at puberty.
Prepare a Table having two columns depicting names of endocrine glands and hormones secreted by them.
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(i) In boys - During adloescence the shoulders become broader and chest becomes wider. The muscles of the body grows more prominent. (ii) In girls - The region below the waist becomes wider during adolescence.