ANIMAL PHYLA

Animal Phyla



Animal Phyla

Part 1

The best renowned animal phyla are the Mollusca, Porifera, Cnidaria, Platyhelminthes, Nematoda, Annelida, Arthropoda, Echinodermata, and Chordata, the phylum to which humans pertains, along with all other vertebrate species, as well as some invertebrates for demonstration the lamprey. Although there are 36 animal phyla, these nine encompass over 96% of animal species. Many phyla are solely marine, and only one phylum, the Onychophora (velvet worms) is solely missing from the world's oceans—although ancestral onycophorans were marine. At the most rudimentary degree, a phylum can be distinguished in two ways: as a assembly of organisms with a ...