Which function is mostly performed in the fleshy tissue parts of a plant, rather than in the tissues that make up the upper layer of leaves?

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.

50% lit on the left side

thinking it would be fimbriae