The most important structure is a canal and chamber system called the water flow system, in which water circulates and carries food and oxygen to the sponge. The water flow system also helps disperse gametes and larvae and remove waste products.
What are the two functions that the flow of water provides to the sponge?
The flow of water to the sponge body is important not only for feeding and digestion, but also for circulation within the sponge. Since the sponge has no organ system, it has no respiratory or circulatory system.
What is the water outlet of the sponge?
Osculum (plural "Oscula") is the excretory structure of a living sponge, a large opening to the outside where water flows after passing through the sponge koel.
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