How does waste water leave a sponges body?

Answer:
"clean" water and "waste" water in a sponge are all the same. Their bodies allow constant flow of water, there is no beginning and end to a sponge; thus technically waste water leaves a sponges body through its many pores.
First answer by Na1905. Last edit by Na1905. Contributor trust: 2 [recommend contributor recommended]. Question popularity: 1 [recommend question].