Phylum Porifera
The Facts …
•Body symmetry- Asymmetrical
•Reproduction- Asexually and Sexually
•Movement- stationary
•Food- snags food from water which passes through them
How do Poriferans reproduce?
http://www.youtube.com/watch?v=KOFFzXNYJG0&feature=related
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.
So how does a sponge work?Water goes OUT
through the Osculum
Water goes IN through the-
pores
Choaocyte
or
‘collar cell’
Sponges are
Cell Aggregates!
After destroying the structure of the sponge
Several hours later
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.
Glass Sponges
Japanese Wedding
gifts