NUTRITION
THE HUMAN BODY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Jack is comparing a horse to a human. He says that he thinks the horse has lungs like humans. Which is the best evidence for Jack’s statement?
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Horses eat food.
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Horses breathe air.
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Horses have legs.
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Horses have fur.
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Explanation:
Detailed explanation-1: -When a horse inhales, the air travels down the trachea, which divides into the tubes known as the right and left bronchi, then into the smaller airways called bronchioles in the lungs. The bronchioles end in the small sacs called alveoli, where the barrier between the air and the blood is a thin membrane.
Detailed explanation-2: -Horses are obligate nasal breathers, which means a horse’s breathing during exercise only occurs through his nose. During exercise, it becomes twice as difficult for horses to move air into the lungs, with 50% of the total resistance in the upper airway originating in the nasal passages. One Breath = One Stride.
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