CBSE · Class 10 · Science · Chapter 7

How do Organisms Reproduce?

Explore asexual and sexual reproduction in plants and animals, including human reproductive health.

14 lessons 50 min
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Lessons in this chapter

  1. 1Do Organisms Create Exact Copies of Themselves?DNA copies the instructions, but biology always leaves room for tiny plot twists.
  2. 2The Importance of VariationVariation is nature’s backup plan for whatever the environment tries next.
  3. 3Modes of Reproduction Used by Single OrganismsOne cell, several clever ways to become more cells.
  4. 4FragmentationSometimes breaking apart is the beginning of a whole new life.
  5. 5Regeneration and BuddingPlanaria rebuild, Hydra buds, and biology refuses to run out of tricks.
  6. 6Vegetative PropagationPlants can start a family without waiting for flowers.
  7. 7Spore FormationTiny spores travel light and wait for the right place to grow.
  8. 8Sexual ReproductionTwo sets of genetic information meet and variation gets a powerful boost.
  9. 9Sexual Reproduction in Flowering PlantsFlowers quietly handle pollen delivery, fertilisation, seeds and fruit.
  10. 10Reproduction in Human BeingsPuberty switches on the body systems needed for reproduction.
  11. 11Male Reproductive SystemSperm production needs a cool workplace and a carefully connected route.
  12. 12Female Reproductive SystemEgg release, fertilisation and development each have their own address.
  13. 13What Happens When the Egg Is Not Fertilised? and Reproductive HealthCycles, choices and health decisions all make more sense with correct biology.
  14. 14Chapter Summary and PracticeThe whole chapter returns for one final, well-organised encore.
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