Sorry this shows as an answer, but can you type out them?
Second moston common drug found in collision victims is <span>Marijuana</span>
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Mechanical digestion involves physically breaking the food into smaller pieces. Mechanical digestion begins in the mouth as the food is chewed. Chemical digestion involves breaking down the food into simpler nutrients that can be used by the cells. Chemical digestion begins in the mouth when food mixes with saliva.
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Answer:
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