Sponges are the simplest of the multicellular animals. They are characterized by numerous canals, tunnels, and chambers that open to the outside by way of pores which giving this phylum its name. They are ancient but age isn't enough to prove that they are our ancestors.
Sponges do not have a nervous system, brain or any organs. Their body is defined by a system of cells and they have no shape. The
Common animals are known to move, feed themselves, reproduce and care for their young. Sponges are the exception to all of this activity. They can reinvent themselves while no other animal can. They are animals, however they conceal their nature. Sponge's
Sponges feeding system is also very unique. They compete this task by sucking in water and filtering out the food particles. Sponges take in one ton of water only to receive one ounce of food. Sponges actively pump water through its tiny canals and chambers. The interior of the sponge is lined with flagellated