👉 In biology, "phylum" refers to a group of organisms that are related genetically and have similar evolutionary histories. These groups can be divided into different classes or orders based on their characteristics such as size, shape, function, etc. For example, in the animal kingdom, there are 7 main phyla: Animalia (plants), Animalia (animals), Protista (bacteria), Fungi (fungi), Eukaryota (cellular organisms), Chordata (birds