Smaller the animals:
Correct answer: A. More rate of respiration
- A. More rate of respiration
- B. Less the rate of respiration
- C. Rate of respiration has nothing to do with the size of animal
- D. None of these
Explanation
Larger the organism, more is the distance covered for circulation of blood inside the body...so, more time is taken to circulate blood to each and every part of the body, which will further affect the heart beat and also lower the breathing rate, so breathing will be deep, but it's rate is slow incase of huge animals like a whale. But, incase of smaller organisms, the blood circulation is faster due to smaller body eg. a Shrew or a Rat, since distance to be travelled by circulating blood will be very less...so, breathing rate will be faster here.
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About Respiration
The human respiratory system includes the air passages, lungs, alveoli and breathing muscles, while gaseous exchange explains how oxygen enters blood and carbon dioxide leaves it by diffusion. The effects of smoking include damage to cilia and alveoli, reduced gas exchange, chronic bronchitis, emphysema and increased risk of lung cancer.
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