Question

characteristics of porifera

Answer 1

porifera means organisms with holes
they are non motile, attached to some solid support
they have canal system that helps in circulating water throughout the body to bring in food and oxygen
they are commonly called sponges
examples are sycon, euplectilea and spongilla

Answer 2

1. Body consists of numerous pores.Each pore contains an opening called operculum.
2. They are vase likr round or branch and non motile and attach to some support.
3. Sponges have a characteristics canal system for water passage.
4. Pores are present all over the body.
5. Reproduction is by asexual as well as sexual methods.
6. Eg : Euplectelea, Sycon , spongilla