Porifera Vocabulary

2. Large tubular cells that constitute the wall of the incurrent canals in some sponges.
4. Excretory structure in the living sponge, a large opening to the outside through which the current of water exits after passing through the spongocoel.
6. Modified type of collagen protein, forms the fibrous skeleton of most organisms among the phylum Porifera, the sponges.
7. Type of sponge having an oval shape and a thin body with pores leading directly into the spongocoel.
10. Siliceous bodies that support the tissue of various invertebrates
12. A moble cell in the body of invertebrates in sponges.
13. Internal buds found in sponges and are involved in asexual reproduction.
14. A large opening in a sponge through which water flows out of the sponge.

1. Genus of calcareous sponges belonging to the family Sycettidae.
3. Cells that line the interior of asconoid, syconoid and leuconoid body type sponges.
5. Layer of cells that covers the outer surface of the sponge.
8. Cannot move, they filter water to obtain their food. They are, therefore, known as filter feeders.
9. Gelatinous matrix within a sponge.
11. A type of sponge having a thick body wall with a highly branched canal system leading into the spongocoel.