Home
Class 12
BIOLOGY
(i) Expand IUD. (ii) Why is hormone re...

(i) Expand IUD.
(ii) Why is hormone releasing IUD considered a good contraceptive to space children.

Text Solution

Verified by Experts

IUD - Intra Uterine Devices.
(ii) The hormone releasing IUD reduce sperm mobility, making the uterus unsuitable for implantation.
Promotional Banner

Topper's Solved these Questions

  • XII BOARDS

    XII BOARD PREVIOUS YEAR PAPER ENGLISH|Exercise SET - I SECTION C|14 Videos
  • XII BOARDS

    XII BOARD PREVIOUS YEAR PAPER ENGLISH|Exercise SET - I SECTION D|8 Videos
  • XII BOARDS

    XII BOARD PREVIOUS YEAR PAPER ENGLISH|Exercise [OUTSIDE DELHI : SET-III] SECTION - C|10 Videos
  • SAMPLE PAPER 2019

    XII BOARD PREVIOUS YEAR PAPER ENGLISH|Exercise Section E Part B|3 Videos
XII BOARD PREVIOUS YEAR PAPER ENGLISH-XII BOARDS-C.B.S.E. CLASS- XII
  1. Mention any two significant roles predation plays in nature.

    Text Solution

    |

  2. Why is the polar region not a suitable habitat for tiny humming birds ...

    Text Solution

    |

  3. (i) Expand IUD. (ii) Why is hormone releasing IUD considered a good ...

    Text Solution

    |

  4. Name the interaction in each of the following : (a) Cuscuta growing ...

    Text Solution

    |

  5. Apant of Antirrhinum majus with red flowers was crossed with another p...

    Text Solution

    |

  6. A women with blood group A married a men with B group . Show the possi...

    Text Solution

    |

  7. Why do sports persons often fall a victim to cocaine addiction?

    Text Solution

    |

  8. State the difference between the first trophic levels of detritus food...

    Text Solution

    |

  9. Coconut palm is monoecious while date palm is dioecious. Why are they ...

    Text Solution

    |

  10. How can DNA segment, separated by gel electrophoresis be visualised an...

    Text Solution

    |

  11. How do darwin' s finches illustrate adaptive radiation ?

    Text Solution

    |

  12. Name the blank spaces a, b, c and d from the table given below :

    Text Solution

    |

  13. DDT contant in the water of a lake that supplies drinking water to the...

    Text Solution

    |

  14. Read the graph given above and correlate the uterine events that take ...

    Text Solution

    |

  15. Explain the role of baculoviruses as biological control agents. Mentio...

    Text Solution

    |

  16. (a) Draw the structure of the intiiator tRNA adaptor molecule. (b) Wh...

    Text Solution

    |

  17. Study the population growth curves shown above (i) Identify curves '...

    Text Solution

    |

  18. Why is Agrobacterium tumefaciens a good cloning vector ? Explain.

    Text Solution

    |

  19. Explain the importance of (a) iori, (b) amp^(R) and (c) rop in the E c...

    Text Solution

    |

  20. Study the mRNA segment given above which is complete to be translated ...

    Text Solution

    |