CBSE  /  Class 10  /  Science  /  How do Organisms Reproduce?

  • 1. 
    Hydra usually reproduces by:

  • fragmentation and budding
  • regeneration and budding
  • multiple fission and fragmentation
  • regeneration

  • 2. 
    Tubectomy is carried out by blocking the

  • oviduct
  • uterus
  • cervix
  • vagina

  • 3. 
    Variations occur as a result of

  • asexual reproduction
  • vegetative propagation
  • sexual reproduction
  • regeneration

  • 4. 
    Fertilisation occurs in human female when the sperms and ovum reach simultaneously at

  • fallopian tube
  • uterus
  • vagina
  • cervix

  • 5. 
    AIDS is a sexually transmitted disease caused due to an infection by a

  • bacteria
  • protozoa
  • virus
  • Plasmodium

  • 6. 
    In the list of organisms given below, those that reproduce by the asexual method are

  • (ii) and (iv)
  • (i), (iii) and (iv)
  • (i) and (iv)
  • (ii), (iii) and (iv)

  • 7. 
    Which of the following is the correct sequence of events of sexual reproduction in a flower?

  • pollination, fertilisation, seedling, embryo
  • seedling, embryo, fertilisation, pollination
  • pollination, fertilisation, embryo, seedling
  • embryo, seedling, pollination, fertilisation

  • 8. 
    Offspring formed by asexual method of reproduction have greater similarity among themselves because

  • (i) and (ii)
  • (i) and (iii)
  • (ii) and (iv)
  • (iii) and (iv)

  • 9. 
    Characters that are transmitted from parents to offspring during reproduction show

  • only similarities with parents
  • only variations with parents
  • both similarities and variations with parents
  • neither similarities nor variations

  • 10. 
    In Spirogyra, asexual reproduction takes place by

  • breaking up of filaments into smaller bits
  • division of a cell into two cells
  • division of a cell into many cells
  • formation of young cells from older cells.
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