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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 does a copper intrauterine device reduce the chance of fertilization?What is the reason sperms do not reach semen after male sterilization?How does blocking the fallopian tube in female sterilization affect fertilization?Why is a contraceptive pill alone not enough to prevent sexually transmitted diseases?Why are both hygiene and correct information necessary in reproductive health?Which structure is most important for exchange of materials between the embryo and mother in the uterus?What is the most direct effect on the embryo if the placenta does not work properly?What is the most correct function of stored food in seed germination?Why will germination be affected if a seed gets water but no oxygen?Why is seed dispersal by fruits beneficial for plants?How is contribution of both parents to the zygote related to variation?Why has sexual reproduction continued in organisms despite being energy costly?Why is reproduction not essential for an individual life but essential for a species?What is the correct conclusion when comparing variation in asexual and sexual reproduction?If the anther is removed from a flower but the pistil remains safe, which process is affected first?If the stigma of a flower is removed, what will be the effect on pollination and fertilization?If a flower has an ovary but no ovules, why will seed formation not occur?Why does the egg become important in the fallopian tube after ovulation?What is the scientific basis of safe sexual behavior in reproductive health?What is the common basic result in all methods of reproduction?