Since the sponge has no organ system, it has no respiratory or circulatory system. They acquire oxygen by diffusing from the water flowing through their bodies, and waste is expelled by diffusing into the same puddle. 11th. 2015 г.
Does the sponge have an organ system?
Sponges are rare animals in that they lack clear organs to perform various functions. The most important structure is a canal and chamber system called the water flow system, where water circulates and carries food and oxygen to the sponge.
Does the sponge have tissue organs or organ systems?
The sponge is considered the oldest animal phyla. They are multicellular, but have no tissues or organs. .. The small pores are the entrance to a complex channel system where the sponge pumps a stream of water from which cells extract small particles of food.
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