| A | B |
|---|
| glass like particles in the matrix of sponges | spicules |
| firbrous protein in the sponge matrix | spongin |
| type of cells found in the matrix of a sponge | amoeboid cells |
| occurs in the collar cells of a sponge | phagocytosis |
| the name of the immature stage of a sponge | larva |
asexual reproduction in a sponge,  | fragmentaiton |
| a dormant cell mass in freshwater sponges that can withstand harsh conditions | gemmules |
| reason sponges have survived so long | unappetizing, filled with glassy, fibrous gelatin |
| Phylum name for sponges | Porifera |
| Jellyfish and Hydra are examples of | Cnidaria |
| type of symmetry in sponges | asymmetrical |
| features of some Cnidarians | tentacles with stinging cells |
| Cnidarian capsules which can shoot out at prey | nematocysts |
| two body forms found in Cnidarians | medusa & polyp |
| bells, upside down saucers | Medusa |
| tubelike with tentacle fringed mouth on top | Polyp |
| three primary tissue layers | ectoderm, endoderm, mesoderm |
| ectoderm, endoderm, mesoderm | embryonic cells are forerunners of these |
| term for animals with a backbone | vertebrates |
| term for animals without a backbone | invertebrates |
| body parts arranged around a central axis | radial symmetry |
| right and left mirrored halves | bilateral symmetry |
| the head end | anterior |
| the rear end | posterior |
| the back surface | dorsal |
| the under or belly surface | ventral |
| evolution of sensory parts and nerve cells concentrated in the head | cephalization |
| tubular or saclike digestive structure | gut |
| gut with mouth and anus | complete |
| body cavity lined with peritoneum | coelom |
| gut with mouth only | saclike |
| how sponges filter water | microscopic pores |
| repeated series of body units, similar or not | segmented |
| sponge cells that intake food through phagocytosis | collar cells |
| fluid filled cavity or cell mass against which contractile cells can act | hydrostatic skeleton |
| gelatinous material between epidermis and gut in Cnidarians | mesoglea |
| swimming or creeping larva of cnidarians like Obelia | panula |
| simple sensory structure in Cnidarians | nerve net |
| type of cnidarian that builds reefs | coral |
| supply Oxygen, recycle mineral waste, adjust pH in a mutualistic interaction with coral | dinoflagellates |
| dinoflagellates | photosynthetic protists that live mutualistically with coral |
| coral | supplies CO2 and mineral ions, provides sunlit shelter |
