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.