Life Processes · Class 10 · CBSE Science
Why is the rate of breathing in aquatic organisms much faster than in terrestrial organisms?
Practice question from Life Processes (Class 10 · CBSE Science), with the correct answer and a step-by-step solution.
medium · MCQ · Q-0655F5
Why is the rate of breathing in aquatic organisms much faster than in terrestrial organisms?
- A.Aquatic organisms have smaller lungs compared to land animals.
- B.The amount of dissolved oxygen in water is fairly low compared to the amount of oxygen in the air.Correct answer
- C.Water is denser than air, requiring more physical effort to inhale.
- D.Aquatic organisms are warm-blooded and require more energy to maintain body temperature.
Solution
Since aquatic organisms obtain oxygen dissolved in water, and the amount of dissolved oxygen is considerably lower than the oxygen concentration in the atmosphere, the rate of breathing in aquatic organisms has to be much faster to obtain adequate oxygen.
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