Across
- 4. - cells that line the interior of asconoid, syconoid and leuconoid body types of sponges that contain a central flagellum, or cilium, surrounded by a collar of microvilli which are connected by a thin membrane.
- 5. - a modified type of collagen protein, forms the fibrous skeleton of most organisms among the phylum Porifera, the sponges.
- 8. - internal buds found in sponges and are involved in asexual reproduction
- 10. - a mobile cell (moving like an amoeba) in the body of invertebrates including echinoderms, molluscs, tunicates, sponges and some chelicerates.
Down
- 1. - one of the large tubular cells that constitute the wall of the incurrent canals in some sponges.
- 2. - a type of sponge having a thick body wall with a highly branched canal system leading into the spongocoel.
- 3. - a type of sponge having an oval shape and a thin body wall with pores leading directly into the spongocoel.
- 5. - one of the minute calcareous or siliceous bodies that support the tissue of various invertebrates
- 6. (Pinacocyte) - the layer of cells that covers the outer surface of the sponge
- 7. (Mesenchyme) - the gelatinous matrix within a sponge.
- 9. - a genus of calcareous sponges belonging to the family Sycettidae.