Home
Class 11
BIOLOGY
Why do molluscs have shells?...

Why do molluscs have shells?

Promotional Banner

Topper's Solved these Questions

  • Kingdom Animalia

    CHETANA PUBLICATION|Exercise Exercise |89 Videos

  • Human Nutrition

    CHETANA PUBLICATION|Exercise Exercise |67 Videos

  • Kingdom Plantae

    CHETANA PUBLICATION|Exercise Exercise|55 Videos

Similar Questions

Explore conceptually related problems

Why do some plants have both chasmogamous and cleistogamous flowers?

Why do the veins have valves?

Why do some people have earache when they travel by an aeroplane ?

Why do noble gases have comparatively large atomic size ?

Why do we have bring a small object near the eyes in order to see it clearly.

Except snails, all molluscs are bilaterally symmetrical true or false.

Fish and frog can respire in water. Can they respire through their skin. If yes, why do they have gills?

Fish and frog can respire in water. Can they respire through their skin? If yes, why do they have gills?

Why do we have green house in botanical gardens?

Why do school bags have broad shoulder traps ?

CHETANA PUBLICATION-Kingdom Animalia -Exercise
  1. Why do molluscs have shells?

    Text Solution

    |

  2. Which of the following belongs to a minor phylum?

    Text Solution

    |

  3. …………………………has a venous heart.

    Text Solution

    |

  4. In Ascaris…………… .

    Text Solution

    |

  5. Which of the following is incorrect in case of birds?

    Text Solution

    |

  6. Chitinous exoskeleton is a characteristic of………… .

    Text Solution

    |

  7. The body plan in which the alimentary canal has a single opening is ca...

    Text Solution

    |

  8. The tube within tube plan is not present in………….. .

    Text Solution

    |

  9. The body wall of Hydra is………… .

    Text Solution

    |

  10. The salient character of Arthropoda is…………… .

    Text Solution

    |

  11. Organs of Bojanus' is characteristic feature of…………….. .

    Text Solution

    |

  12. Which of the following are exclusively marine animals?

    Text Solution

    |

  13. Water vascular system is the unique character of…………… .

    Text Solution

    |

  14. Notochord is absent in the group………….. .

    Text Solution

    |

  15. Excretion and osmoregulation in Earthworm is by………….. .

    Text Solution

    |

  16. Mammary glands are modified……………. .

    Text Solution

    |

  17. Which of the following animals show cellular grade of organisation?

    Text Solution

    |

  18. Mode of digestion in sponges is…………. .

    Text Solution

    |

  19. Which of the following animals is radially symmetrical?

    Text Solution

    |

  20. A characteristic of coelenterate only, is the occurrence of……….. .

    Text Solution

    |

  21. Nervous system first originated in…………… .

    Text Solution

    |