THE ANIMAL KINGDOM. The animal kingdom can be divided into 9 smaller groups. Each group is called a phylum. PHYLUM PORIFERA Sponges. Sponges are sessile animals (they spend their lives attached to rocks).
Cnidarians can have one of two body shapes: an umbrella-shaped medusa form, like the jellyfish on the left, or a vase-shaped polyp form, like the sea anemone on the right.