| A | B |
|---|
| phylum containing the sponges | Porifera |
| also called collar cells | choanocytes |
| ascon, leucon and sycon | the body forms of sponges |
| monoecious | both sexes are in one individual |
| dioecious | sexes are separate in individuals |
| Hydrozoa, Scyphozoa, Cubozoa, Anthozoa | the Cnidarian classes |
| Anthozoa | includes anemones and corals |
| Hydrozoa | includes hydra |
| Scyphozoa | includes the "true" jellyfish |
| osculum | the large opening at the top of a sponge |
| polyp | attaches to surface at aboral end |
| medusa | floats with oral end pointing downward |
| budding | asexual form of reproduction in cnidarians |
| planula | the larval form of a cnidarian |
| phylum containing the comb jellies | Ctenophora |
| nematocysts | stingers of jellyfish |
