Vase Sponge Coral 219

Sponges, the members of the phylum Porifera are a basal Metazoa (animal) clade as a sister of the Diploblats. They are multicellular organisms that have bodies full of pores and channels allowing water to circulate through them, consisting of jelly-like mesohyl sandwiched between two thin layers of cells. The branch of zoology that studies sponges is known as spongiology.  Sponges have unspecialized cells that can transform into other types and that often migrate between the main cell layers and the mesohyl in the process. Vase Sponge Coral 219 do not have nervous, digestive or circulatory sistems. Instead, most rely on maintaining a constant water flow through their bodies to obtain food and oxygen and to remove wastes. Sponges were first to branch off the evolutionary tree from the common ancestor of all animals, making them the sister group of all other animals.  Sponges, the members of the phylum Porifera (/pəˈrɪfərə/; meaning “pore bearer”), are a basal Metazoa (animal) clade as a sister of the Diploblasts.^{[3][4][5][6][7]} They are multicellular organisms that have bodies full of pores and channels allowing water to circulate through them, consisting of jelly-like mesohyl sandwiched between two thin layers of cells. The branch of zoology that studies sponges is known as spongiology.  Vase Sponge Coral 219 have unspecialized cells that can transform into other types and that often migrate between the main cell layers and the mesohyl in the process. Sponges do not have nervous, digestive or circulatory systems. Instead, most rely on maintaining a constant water flow through their bodies to obtain food and oxygen and to remove wastes. Sponges were first to branch off the evolutionary tree from the common ancestor of all animals, making them the sister group of all other animals.  Sponges are similar to other animals in that they are multicellular, heterotrophic, lack cell walls and produce sperm cells. Unlike other animals, they lack true tissues^[10] and organs.^[11] Some of them are radially symmetrical, but most are asymmetrical.