Cells are organized into tissues that perform specialized tasks and tissues, in turn, are grouped together to form whole organs. true or false.

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).

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.