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_____ are harmful substances produced by organisms after they enter the gastrointestinal tract.
Q10: Eating a low-kcalorie or low-carbohydrate diet can
Q30: The alteration of a gene is a
Q43: Condensation is one type of chemical reaction
Q69: Which of the following measures body fat
Q93: The layers of the GI tract carry
Q125: The more protein and less fat that
Q174: Experts recommend that healthy adults consume no
Q188: It is difficult for you to taste
Q192: The body's ability to store excess energy
Q201: What is the most important fact to