Why do multicellular organisms need specialized tissues?
Multicellular organisms need specialized tissues simply to carry out the operations of being a complex organism! (Not to sound too obvious, but let me explain). Multicelluar organisms have many cells that have “decided” or simply grouped together to form a cooperative relationship in which all of them function well at a higher level of some sort so that the other cells may lay off of that skill and focus on other skills. Think about an organism as a living, breathing society. As a society progresses the blacksmith no longer has to just beats metal to make pots and pans, he must specialize to make horse shoes to fit the needs of horses and the transportations of that society so that the horse’s owners can worry about taking care of the horses rather than making them horseshoes. This takes the task off of the owners and puts it into the blacksmith’s hands (this way, the blacksmith can do a superb job at his specialized task as well rather than a so-so job by the owner–and the owner may