Invertebrates

This textbook is compiled for the fair use of Grade 9 students. Only major invertebrates phyla are included. Phylum Porifera Phylum Cnidaria Phylum Ctenophora Phylum Platyhelminthes Phylum Nematoda Phylum Nemertea Phylum Mollusca Phylum Annelida Phylum Arthropoda Phylum Echinodermata Brief information, diagrams, photos, micrograph and some short videos. The information is compiled from different resources and provided to the fair use of students and everyone interested in zoology.