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).
Explanation:
Explanation:
[2ΔSf(H2O (g))] - [2ΔSf(H2 (g)) + 1ΔSf(O2 (g))]
[2(188.72)] - [2(130.59) + 1(205.03)] = -88.77 J/