Science
Reproductive age in women starts when their
- menstruation starts.
- breasts start developing.
- body weight increases.
- height increases.
Adolescence
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Answer
menstruation starts.
Reason — Start of menstruation marks end of puberty and start of reproductive age.
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Write notes on :
(a) Adam's apple.
(b) Secondary sexual characters.
(c) Sex determination in the unborn baby.