Home
Class 11
BIOLOGY
Why do chondrichthyes swim constantly?...

Why do chondrichthyes swim constantly?

Text Solution

Verified by Experts

The correct Answer is:
Because they lack air bladder
Promotional Banner

Topper's Solved these Questions

  • ANATONY OF FLOWERING PLANTS

    ALLEN |Exercise Exercise|30 Videos

  • BIOMOLECULES

    ALLEN |Exercise Question|64 Videos

Similar Questions

Explore conceptually related problems

Give the characteristic features of the following citing one example of each (a) Chondrichthyes and Osteichthyes (b) Urochordata and Cephalochordata

Give difference : Chondrichthyes and Osteichthyes

Why do we consider blood as a connective tissue?

Why do solid bodies stay in stable equilibrium position?

Why is it easier to swim in sea water than in river water ?

Why do organisms reproduce ?

Why do stars twinkle ?

ALLEN -ANIMAL KINGDOM-Exercise
  1. The teeth in cartilaginous fishes are formed due to modification of wh...

    Text Solution

    |

  2. What is the name of structure that prevents the bony fishes from sinki...

    Text Solution

    |

  3. Why do chondrichthyes swim constantly?

    Text Solution

    |

  4. Name a fish which has electric organ.

    Text Solution

    |

  5. Name a fish which possess poisonous sting.

    Text Solution

    |

  6. The animals which don't have the capacity of regulate their body tempe...

    Text Solution

    |

  7. How many pairs of gills are present in bony fishes?

    Text Solution

    |

  8. Name the cap which covers the gills in fishes:

    Text Solution

    |

  9. Which structure represents ear in amphibians and reptiles?

    Text Solution

    |

  10. In which class of vertebrates 3-chambered heart is found?

    Text Solution

    |

  11. The common chamber for alimentary canal, urinary, bladder and reproduc...

    Text Solution

    |

  12. Which class of vertebrates possesses dry and cornified skin with epide...

    Text Solution

    |

  13. In which reptiles 4-chambered heart is present?

    Text Solution

    |

  14. Snakes and lizards shed off their scales often. This phenomenon is cal...

    Text Solution

    |

  15. The presence of feathers is characteristic of which class?

    Text Solution

    |

  16. The bones of birds are long and hollow with air cavities. These types ...

    Text Solution

    |

  17. name of the additional chambers found in the digestive tract of birds:

    Text Solution

    |

  18. name the respiratory organs in birds and mammals:

    Text Solution

    |

  19. Presence of mammary gland is the unique character of which class?

    Text Solution

    |

  20. Name an oviparous organism with presence of mammary glands:

    Text Solution

    |