Invertebrates

Placozoa

Porifera

Cnidaria

Platyheminthes

Placozoan from Guam, roughly 400 microns across

Picture of Axinella dissimilis

Nematoda Rotifers Mollusks Annelida
nematode micrograph [marine] The Earthworm

Arthropods

Echinodermata

Chordata

Endangered Species

Works Cited

Roles in the Environment and Uses by Humans

Placozoa

Porifera

Cnidaria

Platyheminthes

Nematoda

Rotifers

Mollusks

Annelida

Arthropods

Echinodermata

Chordata

Andrew Collicutt, Jamie Green, Carlton Ramsahai, Micheal Stevens