After Kingdom, it is the primary division of organisms sharing core structural traits.
Creatures with stinging tentacles (jellyfish, corals). Porifera : Simple, porous aquatic animals (sponges). Annelida : Segmented worms. Why Does Phylum Matter?
In botany (plants, fungi), the term division is often used interchangeably with phylum. Key Phyla in the Animal Kingdom
Animals with a backbone (or notochord), including humans, fish, and birds.