Multicellular organisms are organisms that consist of more than one cell, in contrast to single-celled organisms. Most life that can be seen with the the naked eye is multicellular, as are all...
Stem cells are basic cells. They are completely undefined and can become anything. Stem cells can be used the grow various organs due to this. The cells however would only be useful to the person...
Phagocytose any foreign material, or dead cells. They also start infection induced inflamation via the release of pro-infamatory cytokines (IL-1, 6, 8 and TNF alpha).