What is a Phylum?
A phylum is the classification level below kingdom and it groups organisms according to body plan. The 9 phylum classes for the animal kingdom are Porifera (sponges), Nematoda (roundworms), Mollusca (mollusks), Cnidaria (jellyfish and polyp), Annelida (earthworms), Echinodermata (echinoderms like sea stars), Platyhelminthes (flatworms like tapeworms), Arthropoda (spiders and insects), and Chordata (vertebrates).
A phylum is the classification level below kingdom and it groups organisms according to body plan. The 9 phylum classes for the animal kingdom are Porifera (sponges), Nematoda (roundworms), Mollusca (mollusks), Cnidaria (jellyfish and polyp), Annelida (earthworms), Echinodermata (echinoderms like sea stars), Platyhelminthes (flatworms like tapeworms), Arthropoda (spiders and insects), and Chordata (vertebrates).