I believe the somatic motor association area is responsible for the coordination of the learned motor responses. The somatic motor association area is also the motor cortex which is a region of the cerebral cortex that helps in planning control and execution of voluntary functions among other functions.
Well all cells in a multicellular organism have the same exact DNA (except for sex cells). But what makes each type of cell different physically and functionally is the genes that are expressed in those cells.So for like example a different section of the DNA molecule is expressed in a nerve cell than a skin cell.
The desert plants, I forgot the other name
atom, molecule, cells, tissues, organ, organ system, organism
