Why does a sponge not have nerves?

A coelom is the cavity within the body in which the intestines, lungs, heart, kidney, etc., are located, and it is sealed off from the outside world. The body cavity of sponges is large, it is open to the outside world, and it enables the sponge to consume food (Dawkins 2004). read more

When a nervous impulse reaches the nerve terminal, it causes the vesicles to fuse with the membrane and to release their contents into the synapse. Once a vesicle is emptied of its cargo, it goes through an elaborate process of recycling. read more

Sea sponges have the makings of a nervous system Posted on Saturday, June 9, 2007 by Mo Costandi under Evolutionary Biology, Molecular Cell Biology, Neuroscience Sea sponges are sedentary organisms that attach themselves to the sea bed and filter nutrients from the water that they force through their porous bodies with flagella. read more

No, sponges do not have nervous system. They belong to phylum porifera and the animal belonging to this phylum have cell grade organization. They do not even have nerve cells. read more