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Assertion (A) : The rate of breathing in...

Assertion (A) : The rate of breathing in aquatic organisms is much slower than that seen in terrestrial organisms.
Reason (R) : The amount of oxygen dissolved in water is very low as compared to the amounts of oxygen in air.

A

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).

B

Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A)

C

Assertion (A) is true, but Reason (R) is false.

D

Assertion (A) is false, but Reason (R)is true.

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Rate of breathing in aquatic organisms is much faster than that in terrestrial organisms. Give reasons

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Knowledge Check

  • Two statements are given - one labelled Assertion (A) and the other labelled Reason (R). Assertion: The rate of breathing in aquatic organisms is much faster than in terrestrial organisms. Reason: The amount of oxygen dissolved in water is much lower than the amount of oxygen in air. Which of the following is correct?

    A
    Both A and R are true, and R is the correct explanation of A
    B
    Both A and R are true, but R is not the correct explanation of A.
    C
    A is true, but R is false.
    D
    A is false, but R is true.

  • The rate of breathing in aquatic organisms is much faster than terrestrial organisms as:

    A
    Amount of dissolved oxygen is quite low as compared to amount of oxygen in air.
    B
    Amount of dissolved carbon dioxide is quite low as compared to amount of carbon dioxide in air.
    C
    Fishes have gills
    D
    Heart of fishes have only two chambers.

  • As compared to terrestiral organisms, the rate of breathing in aquatic organisms is

    A
    slightly slower
    B
    much faster
    C
    almost the same
    D
    much slower

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    Explore conceptually related problems

    Why is the rate of breathing in aquatic organisms much faster than in terrestrial organisms?

    The rate of breathing in aquatic organisms is faster than that of terrestrial animals

    Why is the rate of breathing in aquatic organisms much faster than in terrestiral organisms ?

    The rate of breathing in aquatic organisms is much faster than that seen in terrestrial organisms. Give reason. State the pathway of air form nostrials to the lungs in human beings. or Mention three characterisitc features of hormonal secretions in human beings.

    Say true or false i) The rate of breathing in aquatic organisms is much faster than that in terrestial organisms ii) Phloem transports amino acids iii) The rate of diffusion of oxygen in microscopic organisms in all directions is approximately equal to the rate at which oxygen is consumed in respiration. iv) The cells and tissues and organs in the body of an animals work independently of each other v) The endocrine system consists of ductless glands.

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