Hello! :)
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Reasons:
1. They are not healthy
2. If they have some sort of sickness
3. They are tired and does not get enough sleep/energy
4. If they are skinny
5. Too lazy
I mostly think it’s number 1 and 3.
Hope this helps! :)
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By:BrainlyMember ^-^
Good luck!
Answer:
These muscles push materials like food or blood through organs. Unlike skeletal muscle, smooth muscle can never be under your control.
Explanation:
Cardiac muscle is also an involuntary muscle, found only in the heart. Cardiac muscle differs from skeletal muscle in that it exhibits rhythmic contractions and is not under voluntary control. The rhythmic contraction of cardiac muscle is regulated by the sinoatrial node of the heart, which serves as the heart's pacemaker.
False. Stretching correctly is suppose to help prevent from pulling and muscle or harming one self.
