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Question
Which of the following is most likely to have a much higher breathing rate?
Which of the following is most likely to have a much higher breathing rate?
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Solution
The correct option is B Fish
The smaller the size of the animal, higher is the metabolic rate and higher the respiratory (breathing) rate. This is because a smaller size means a higher surface area to volume ratio and, therefore, a higher need for oxygen to be supplied to the different tissues. Since fishes are smaller in size they will have a much higher breathing rate. So, the correct option is 'fish'.
The smaller the size of the animal, higher is the metabolic rate and higher the respiratory (breathing) rate. This is because a smaller size means a higher surface area to volume ratio and, therefore, a higher need for oxygen to be supplied to the different tissues. Since fishes are smaller in size they will have a much higher breathing rate. So, the correct option is 'fish'.
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