Choose the correct option.

Reproductive age in women starts when their

(i) menstruation starts.

(ii) breasts start developing.

(iii) body weight increases.

(iv) height increases.

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

Choose the correct option.

(a) Adolescents should be careful about what they eat, because

(i) proper diet develops their brains.

(ii) proper diet is needed for the rapid growth taking place in their body.

(iii) adolescents feel hungry all the time.

(iv) taste buds are well developed in teenagers.

Choose the correct option.

The right meal for adolescents consists of

(i) chips, noodles, coke.

(ii) chapatti, dal, vegetables.

(iii) rice, noodles and burger.

(iv) vegetable cutlets, chips and lemon drink.

Write notes on –

(a) Adam's apple:

(b) Secondary sexual characters: T

(c) Sex determination in an unborn baby: