| A | B |
|---|
| sponge | simplest invertebrate, pore bearing, belongs to phylum porifera |
| porifera | porebearing |
| spicules | thin, sharp, spines on sponge for protection |
| spongin | soft, flexible material some sponges contain |
| sexual reproductiuon | reproduction involving 2 parents |
| asexual reproduction | single organism produces a new organism |
| budding | type of asexual reproduction, part of organism breaks off and a new organism develops from broken off part |
| cnidarian | organism with a hollow central opening, tentacles with stingers, and 2 body layers |
| nematocysts | specialized stinging cells |
| hydra | polyp shaped cnidarians, live in fresh water |
| polyps | vase shaped cnidarians |
| coral | soft bodied organisms that build hard outer coverings with calcium and limestone, found in the ocean |
| sea anemones | polyp shaped cnidarians often mistaken for plants because of their colorful tentacles. Live well with clown fish. |
| tentacles | long arm-like structures that have stingers for protection and catching prey |
