Sponges

Sponges live at the bottom of the ocean, where they trap bacteria inside of their pores and eat them. Sponges depend on the flow of water to eat. Their phylum is Porifera, meaning they have many pores. The skeleton of the sponge is made out of spicules and spongin. The vodcast talked about many types of invertebrate, and a sponge is one of them. The kingdom of a sponge is animal, and the domain is eukaryote. Sponges have been around for a very long time, because of their ability to adapt the its environment. Sponges are neither female or male, and they can play both roles in reproduction. Sponges can be colorful, or just a plain color. Sponges can either be encrusted, living on something solid, or free standing, which can grow big enough to fit a person inside of it.





http://www.oceanicresearch.org/education/wonders/sponges.html