Explain the difference between the greater pelvis and the lesser pelvis.

Explanation:

The greater pelvis (pelvis major) is situated above the pelvic brim, and bounded on either side by the ilium, while in front it is incomplete. The lesser pelvis (pelvis minor), situated below and behind the pelvic brim, is divided into an inlet and outlet part.

explanation:

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).