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Subjects

Science

Reproduction

प्रजनन

In this Class 10 Science topic from the “World of Living” chapter, students explore how organisms produce new individuals and why reproduction is essential for the continuation of life. They compare asexual and sexual reproduction, study reproductive processes in plants and humans, and understand puberty, the human reproductive system, fertilisation, menstruation, and basic reproductive health. The topic also introduces contraception and the role of responsible choices in preventing unwanted pregnancy and sexually transmitted infections.

Practice questions

What is the dual function of testes in humans?MediumLevel 26What is the dual function of ovaries in humans?MediumLevel 26What is the correct difference between sperm and ovum?MediumLevel 26In humans fertilisation occurs in the oviduct but why does the embryo develop in the uterus?MediumLevel 26How does placenta help between embryo and mother?MediumLevel 26If fertilisation does not occur why does the thick lining of uterus break down?MediumLevel 26What is the main reason reproductive organs become active during adolescence?MediumLevel 26Secondary sexual characters are related to what?MediumLevel 26How do contraceptive pills generally help prevent pregnancy?MediumLevel 26How does a condom help in contraception and protection from sexually transmitted diseases?MediumLevel 26Where is a copper contraceptive device placed to prevent pregnancy?MediumLevel 26Why is surgical contraception considered a permanent method?MediumLevel 26What is the basic principle of sterilisation in preventing pregnancy?MediumLevel 26Why is safe behaviour necessary to prevent sexually transmitted diseases?MediumLevel 26Why are testes present in a pouch outside the body in humans for sperm formation?MediumLevel 26What is the main function of sperm duct?MediumLevel 26Why is addition of fluid to sperms useful in semen?MediumLevel 26How is the function of oviduct different from uterus?MediumLevel 26If the oviduct is blocked why can pregnancy become difficult?MediumLevel 26Why can stopping of the menstrual cycle be a sign of pregnancy?MediumLevel 26