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In what for do plants utilize nitrogen? why do they need nitrogen?

If the frequency of the p allele is .63 in the population then what is the frequency of the q allele?

Question 1 of 102 pointswhich best describes adaptive radiation? oa. geographical isolation caused by an adaptationob. biodiversity resulting from few ancestorsoc. a decrease in the rate of speciationd. adaptations that organisms teach each other