A. Body composition is the percentage of fat to lean body mass
This is a statment, not a question........
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Well, what exactly are the four tissue, we may ask. The four tissue that would support the heart would be considered to be called: muscle, the nervous, epithelial and I believe the connective. And, as for all of these, they all perform great function. And one of them are to support the function of the heart.
All four provide protection. Let's take for example the Epithelial. The would cover the whole entire body and form lining, for the small cavities, which are small whole in the body. But, let's not be afraid of this. We can count on our Epithelial on this aspect. But, this would just be one example on what these tissue do to use. They are very helpful, and if it wasn't for them, we wouldn't be alive, of course.
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