Answer:D
Explanation:
Hibernation is an innate behavior. It is not learned after birth. Animals that hibernate are born with an internal sense, or instinct, that tells them.
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Answer:
Mitral stenosis causes reduced blood flow through the narrowed valve opening from the left atrium to the left ventricle. As a result, the volume of blood bringing oxygen from the lungs is reduced. This can make you feel tired and short of breath.
Explanation:
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