The domestic cat and humans belong to the same: a. family, genus and species c. order, family and genus b. class, order and family d. kingdom, phylum and class

Kingdom, Phylum and Class.

Explanation:

The level of classification was explained and given by Linnaeus. He explained the importance of classification of organism in the easy study of the organism. Organism are classified on the basis of similarities and differences among them.

The highest level of the classification is kingdom and lowest level is species. The humans and cats are included in the kingdom animalia. The kingdom is divided into plants and animals. Further, the cats and humans have same phylum chordata as they both have notochord. The class of the human and domestic cats is mammalia. Hence, they have same kingdom, phylum and class.

Thus, the correct answer is option (d).

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).