How would you put these in order in the cladistics chart and a reason why it goes there? chimpanzee, owl, elephant, butterfly, spider, turtle, toad, octopus

Cladistics chart is a biological classification in which organisms are categorized based on their ancestors’ characteristic that can be traced back to them. First is chimpanzee then elephant, and spider then butterfly then owl, and toad then turtle then octopus.

a "theory" a suggestion that is not 100 % accurate, or a figure. some people say its a theory because they of all the passed theory's about one subject. it depends sometimes theory might be accurate and sometimes they are.

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).