Classification of Animals Characteristics Common To All Animals - Animal Innovations Tissue Layers - Symmetry - Body Cavities - Developmental Patterns.
Invertebrate C omparative Anatomy
Phylum Porifera The “Pore Bearers” . Phylum Porifera : The Sponges A few examples Yellow Tube Sponge Stovepipe Sponges Red Volcano Sponge.
