classification is the act of arranging organisms into groups based on their similarities and differences. this makes it easier for scientists to identify and study organisms
taxonomy
the study of classification and places animals into a taxonomic hierarchy
in the heirachy, similar organisms are organised into 3 large groups
called domains e.g. animals, plants, and fungi are in the eukarya domain
after domain similar organisms are sorted into kingdoms e.g. all animals are in animal kingdom (Animalia)