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Subjects

Science

Reproduction

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.

Expert · Level 4 · 25 questions

Practice questions

01Deepening of voice during adolescence is more closely related to what?

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02What is the functional reason for the size difference between male and female gametes?

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03How can a barrier contraceptive method help prevent both pregnancy and disease?

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04What can be the main biological effect of hormone-based contraceptive pills?

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05How does a copper intrauterine device reduce the chance of fertilization?

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06What is the reason sperms do not reach semen after male sterilization?

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07How does blocking the fallopian tube in female sterilization affect fertilization?

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08Why is a contraceptive pill alone not enough to prevent sexually transmitted diseases?

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09Why are both hygiene and correct information necessary in reproductive health?

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10Which structure is most important for exchange of materials between the embryo and mother in the uterus?

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11What is the most direct effect on the embryo if the placenta does not work properly?

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12What is the most correct function of stored food in seed germination?

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13Why will germination be affected if a seed gets water but no oxygen?

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14Why is seed dispersal by fruits beneficial for plants?

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15How is contribution of both parents to the zygote related to variation?

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16Why has sexual reproduction continued in organisms despite being energy costly?

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17Why is reproduction not essential for an individual life but essential for a species?

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18What is the correct conclusion when comparing variation in asexual and sexual reproduction?

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19If the anther is removed from a flower but the pistil remains safe, which process is affected first?

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20If the stigma of a flower is removed, what will be the effect on pollination and fertilization?

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21If a flower has an ovary but no ovules, why will seed formation not occur?

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22Why does the egg become important in the fallopian tube after ovulation?

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23What is the scientific basis of safe sexual behavior in reproductive health?

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24What is the common basic result in all methods of reproduction?

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25Why are both reproduction and variation important for the long-term existence of a species?

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