Which statement about variation is true? a) all phenotypic variation is the result of genotypic variation. b) all genetic variation produces phenotypic variation. c) all nucleotide variability results in neutral variation. d) all new alleles are the result of nucleotide variability. e) all geographic variation results from the existence of clines.

Which of the following options describes photosynthesis correctly? question 8 options: a plant uses carbon dioxide and water to make oxygen and nitrogen a plant breaks down sugar to make carbon dioxide. a plant uses sunlight, carbon dioxide, and water to make sugar and oxygen. a plant uses sunlight to break down sugars for digestion into water and oxygen.