Science Fair Project Encyclopedia
Demosponges
Demosponges are the largest class of Phylum Porifera. Their 'skeletons' are made of spicules consisting of spongin fiber (a protein), silica, or both. They contain 90% of all species of sponges, and are predominantly Leuconid structural grade. There are many diverse orders in this class, and all of the large sponges are within this class.
10-26-2009 08:16:03
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details