- Can a growing of the child to adult be called as the process of metamorphosis?
- Reproductive phase in human continues for how many decades?
- why do we get pimples sometimes when we are excited?
- what is dandruff and how and why do we get it?
- diffrence between DNA and RNA.
- Which two endocrine glands in humans secrete sex hormones?
- (a) Which gland controls the secretion of sex hormones?(b) By which process an ovum is released from an ovary?
- When does the reproductive phase of life begin and end in:(i) Females(ii) Males
- Will menstruation occur in case of pregnancy? Why?
- What do you understand by the terms menarche and menopause.
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