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<span>Physiology is studying the function of a certain body part.
</span><span>Anatomy is learning about the relationship between body parts. </span>
i think...
B. the nervous system connects bones
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The mouth is the beginning of the digestive tract. In fact,digestion starts here as soon as you take the first bite of a meal. Chewing breaks the food into pieces that are more easily digested, while saliva mixes with food to begin the process of breaking it down into a form your body can absorb and use.
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