👉 The term "metazoal" refers to a group of organisms that are derived from the process of multicellularity, which is characterized by the presence of multiple specialized cells. These organisms are classified into three main groups: eukaryotes (organisms with a nucleus and a membrane-bound cell wall), prokaryotes (organisms without a nucleus but have a similar structure to eukaryotes, such as bacteria and viruses) and chiroptera (a group of single-celled animals