I think the statement “the human digestive system is very efficient at squeezing everything it can out of any food?" refers to the way the stomach is good at absorbing the wanted nutrients and keeping them in the body, while disposing of the unwanted waste and toxins. The biomolecules are broken down to preserve only certain nutrients within the molecules.
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Question is incomplete i have added full question with explanation and reaction see attachment.
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I think it would be B: Our brains add details and general knowledge to childhood memories.
Sorry if its not correct
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