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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

How can the need for water air and suitable temperature in seed germination be understood most correctly?Why is it incomplete to understand testes only as organs of sperm production in the human male reproductive system?What is the scientific reason for testes being located in a sac outside the body?Why does hormone production in testes not completely stop even if the sperm duct is cut?Why is the importance of ovaries in the human female reproductive system not limited only to egg production?Why does fertilisation usually occur in the fallopian tube in humans?Which is the correct sequence of zygote and embryo?Why is attachment of the embryo to the wall of uterus very important?Why is placenta called the main site of connection between mother and embryo?How can menstruation be linked with preparation of uterus and absence of pregnancy?What is the direct cause of development of secondary sexual characters during adolescence?Why is condom linked not only with contraception but also with reproductive health?How do Copper T and contraceptive pills work on different principles?What is the reason for considering sterilisation a permanent method?Why is it necessary for gametes to have half the chromosome number in sexual reproduction?If gametes have the full chromosome number what problem may occur across generations?Why is sexual reproduction considered useful in changing environments even though it needs more time and energy?Why is asexual reproduction considered limited in terms of variation even though it is fast?What is the correct difference between a male flower and a bisexual flower?If a flower has pistil but no stamen what type of flower will it be?