2. The Facts … Body symmetry- Asymmetrical Reproduction- Asexually and Sexually Movement- stationary Food- snags food from water which passes through them

3. How do Poriferans reproduce? http://www.youtube.com/watch?v=KOFFzXNYJG0&fe ature=related http://www.youtube.com/watch?v=KOFFzXNYJG0&fe ature=related

4. Phylum Porifera Porifera in Greek means “having pores” The body of a sponge is covered in pores… These allow the sponges to take in FOOD such as plankton as well as OXYGEN. Collar cells aka Choanocytes Sponges don’t have bones, yet they are still hard. Sponges have tiny SPICULES that act as skeletons.

5. So how does a sponge work? Water goes OUT through the Osculum Water goes IN through the- pores Choaocyte or ‘collar cell’

6. Sponges are Cell Aggregates! After destroying the structure of the sponge  Several hours later 

7. Nemo is in Danger!! The coral reef is in danger! Although some parts of the coral reef is as hard as a rock, the ecosystem is very delicate. If things like scuba divers or boat anchors touch the coral it can damage to the reef and destroy many animals’ niches.