Why+do+we+have+a+Digestive+System?

=WHY? = media type="custom" key="19147498" =Humans have a digestive systems to: = =-Break down the food consumed. = =-Absorbe all of the nutrients and vitamins the body needs. = =-Get the food into our body. = =-Digest food. = =-Eliminate materials we don't need. =

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