False teeth help the digestive system by chewing pieces of food into smaller pieces but it is not part of it.
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I think the answer is B.. I’m really not sure
Gene is a stretch of a DNA that determines a particular trait<span>. Genes can mutate and take two or more alternative forms, now these are called alleles of a particular gene. Now allele occurs in a fixed spot in a chromosome and in humans we have two sets of chromosomes. hope helps
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