CLASSIFICATION
CHARACTERISTICS OF MAMMALS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A sheet of muscle located beneath the lungs that enlarges and contracts the chest cavity
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gestation
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placenta
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diaphragm
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uterus
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Explanation:
Detailed explanation-1: -The diaphragm, located below the lungs, is the major muscle of respiration . It is a large, dome-shaped muscle that contracts rhythmically and continually, and most of the time, involuntarily. Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges.
Detailed explanation-2: -The thoracic diaphragm, or simply the diaphragm (Ancient Greek:
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