Porifera Vocabulary

2. sponge or sponge larva having a complex structure in which the flagellated layer is restricted to numerous small interstitial chambers intercalated between the incurrent and excurrent canals and the paragaster is reduced or lacking compare ascon, sycon.
3. a mobile cell (moving like an amoeba) in the body of invertebrates including cnidaria, echinoderms, molluscs, tunicates, sponges and some chelicerates
6. the structural components of a sponge, or the "bricks,"
8. permanently attached and not free to move about
9. a large opening that forms the excretory tract of the sponge
10. a sponge or sponge larva having incurrent canals that lead directly to the paragaster
12. a type of modified cell that lines the inner lining of the phylum Porifera
13. the gelatinous matrix within a sponge. It fills the space between the external pinacoderm and the internal choanoderm.

1. theoretical particle in the theory of pangenesis that is shed by a somatic cell and contains all the information necessary to reproduce that cell type
4. a modified type of collagen protein, and forms the "fibers" or "mortar" that hold spicules together
5. Any of a group of flattened polygonal cells that together make up the pinacoderm in the dermal epithelium of sponges.
6. a genus of sponges that belongs to the family Sycettidae and phylum Porifera
7. one of the large tubular cells that constitute the wall of the incurrent canals in some sponges.
11. A small opening or orifice, as in a body organ or passage