<span>a form of natural selection in which individuals within certain inherited characteristics are more likely than others to obtain mates.</span><span>all the alleles for all the loci in all individuals of a population
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<span>These are symptoms of rickets. Rickets is a disease that results from the deficiency of vitamin D. This is when there is imperfect calcification, softening, and distortion of the bones. In order to treat this vitamin D or calcium might be added to a diet.</span>
