Help me out please it’s science multiple question

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).

a chain link fence because there so tiny even my albino donkey can't get out

nb

explanation:

kj

answer/// to address the needs of adults with mental illness and increase their ability to function;