||Levels of organization, showing
relation of atoms to cells to organisms.
Each item represents a different level of
organization. Organelles, for example, operate only within a
cell and what they do has direct effects only on the cell. A
tissue, such as muscle for example, operates on a higher level
of organization, because it has many cells that work together
to perform that tissue's function in the body. Two or more
tissue types occur in organs, which represent yet a higher
level of organization.