Question

state the system in the porifera that allows the circulation of food and oxygen throught thr body. What shall we write @meritnation? shall we write it the porous system?

Answer 1

Through out the body of the sponge run canals that may be termed as canal system or sponge system which is unique in them. The canals have openings to the outside which are called pores which allows the circulation of water throughout the body and bring in food and oxygen.