CBSE Class 10 Answered
respiration
Asked by | 20 May, 2009, 09:30: PM
Expert Answer
Oxygen concentration in the air is over an order of magnitude higher than that of water-dissolved oxygen. This means that with every breath, aquatic animals are unable to inhale as much oxygen as do air-breathing animals. So to take in more oxygen, they need to breathe faster.
Answered by | 21 May, 2009, 07:02: PM
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