Answer:
B) Valves closing
Explanation:
A healthy heart makes a lub-dub sound with each beat. This sound comes from the valves shutting on the blood inside the heart. The first sound (the lub) happens when the mitral and tricuspid valves close.
Answer:
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Answer:
A heat pad
Explanation:
if you have no head injury and your body hurts use a heating pad
Answer: and eating disorder is basically disordered eating. could mean one restricts food or over eats. most people with eating disorders also have a false sense of themselves.
Explanation:
Answer: B. Exercise is a subset of physical fitness.
Explanation:
