Home
Class 12
BIOLOGY
Most of vertebrates can maintain a const...

Most of vertebrates can maintain a constant internal osmolarity different from the surrounding medium, except

A

Myxine

B

Sharks

C

Bony fishes

D

Both (1) & (2)

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • EXCRETORY PRODUCTS AND THEIR ELIMINATION

    AAKASH INSTITUTE|Exercise SECTION A (OBJECTIVE TYPE QUESTIONS)|37 Videos

  • EXCRETORY PRODUCTS AND THEIR ELIMINATION

    AAKASH INSTITUTE|Exercise SECTION B (OBJECTIVE TYPE QUESTIONS)|20 Videos

  • EXCRETORY PRODUCTS AND THEIR ELIMINATION

    AAKASH INSTITUTE|Exercise TRY YOURSELF|44 Videos

  • EVOLUTION

    AAKASH INSTITUTE|Exercise TRY YOURSELF|29 Videos

  • HUMAN REPRODUCTION

    AAKASH INSTITUTE|Exercise Try Yourself|17 Videos

Similar Questions

Explore conceptually related problems

Fill in the blanks : (i) Annelids have......and insects have........for excretion. (ii) Organisms that show changes in the concentration of body fluids according to the concentration of surrounding medium are called......and those which maintain an internal osmolarity different from the surrounding medium in which they live are called...... . (iii) Sharks and coelacanths reduce the osmoregulatory challenges by retaining..........and.........respectively in their body fluids making them slightly hypertonic to sea water. (iv) In earthworm, depending upon their position, septal nephridia are........and pharyngeal nephridia are.......... . (v) Blood enters the glomerulus via..........arteriole acid leaves via....arteriole.

Organisms that can maintain a constant internal temperature are called as

Organisms that cannot maintain a constant internal environment are known as

Name two vertebrates which do not maintain the osmolarity of body fluid.

A : DNase can inhibit the process of transformation. R : Transformation is absorption of DNA segment from the surrounding medium by a living bacterium.

The organisms which can maintain a constant body temperature are

Nearly all plants and an overwhelming majority of animals are categorised as (A) Conformers - They can maintain a constant internal environment (B) Conformers - They cannot maintain a constant internal environment (C) Regulators - They can maintain a constant internal environment (D) Regulators - They cannot maintain a constant internal environment

Assertion : Process of maintaining a constant internal environment is known as homeostasis . Reason : Kidneys are excretory and homeostatic organs.

$ Homoestasis is the capacity of a living organisms to maintain its constant internal conditions. Majority of homoestatic processes occur with the help of oxygen.

AAKASH INSTITUTE-EXCRETORY PRODUCTS AND THEIR ELIMINATION-EXERCISE
  1. Most of vertebrates can maintain a constant internal osmolarity differ...

    Text Solution

    |

  2. Some animals convert highly toxic NH(3) into least toxic trimethylamin...

    Text Solution

    |

  3. Find out incorrect statement w.r.t. the human kidney

    Text Solution

    |

  4. The opening of urinary bladder is guarded by two urethral sphincter, w...

    Text Solution

    |

  5. Find out incorrect statement w.r.t. the cortical nephrons

    Text Solution

    |

  6. Where do you find podocyte cells in human body ?

    Text Solution

    |

  7. Proximal convoluted tuble is highly specialized for reabsorption of su...

    Text Solution

    |

  8. Which of the following cannot be considered as part of structur of uri...

    Text Solution

    |

  9. The most advanced kidneys in which loop of Henle is present are called...

    Text Solution

    |

  10. Which of the following structure helps in exoretion and conservation o...

    Text Solution

    |

  11. Hypersomlarity of interstitial fluid in renal medulla is maintained by...

    Text Solution

    |

  12. How much amount of blood passes through the kidneys per minute in a he...

    Text Solution

    |

  13. Chemically glomerular filtrate is similar to blood plasma, except

    Text Solution

    |

  14. A fall in GFR can activate the JG cells to release "" which can stimul...

    Text Solution

    |

  15. Substances like glucose, amino acid NA^(+) etc. in the filtrate are re...

    Text Solution

    |

  16. Osmotic concentration of flomerular filtrate is the highest at the bot...

    Text Solution

    |

  17. Which part of nephron is impermeable of H(2)O but allows transport of ...

    Text Solution

    |

  18. Counter current machanism helps in concentrating urine in animals and ...

    Text Solution

    |

  19. Diuretic substances like tea, coffee, alcohol etc. increases urine upt...

    Text Solution

    |

  20. Mark the inappropriate term w.r.t. the glomerular filtration

    Text Solution

    |