how does a sponge obtain food how does a jellyfish move

When the water enters the body through the canal pores it brings in food and oxygen into the body and takes out excreta and other reproductive bodies out of the sponge body via. The canal system is just the perforation of the body surface by numerous pores for the entry and exit of water into and out of the body of the sponge.

In order for digestion to take place, the surrounding water has to enter the canal system pathway of the sponge’s body. The cells lining the canal passage of the sponges help in one way or the other in the proper digestion of the food particles and in the excretion of the wastes. The mesenchyme is actually non-cellular in nature and consists of various other cell types there like Amoebocytes, Scleroblasts, Chromocytes, etc. Their body wall is with outer pinacoderm (dermal epithelium), inner choanoderm (gastral epithelium), and gelatinous non-cellular mesenchyme layer in between. Sponges are the simple living multicellular marine-aquatic animals that are found in the coral reefs or in the deep sea water.

How does a sponge obtain food how does a jellyfish move