An organ system is made up of
A.
organs that work together to perform a certain function.
B.
organisms that have similar behaviors and appearances.
C.
all of the tissues found in an individual organism.
D.
identical cells that perform the same function.
Organs are the body's recognizable structures (for example, the heart, lungs, liver, eyes, and stomach) that perform specific functions. An organ is made of several types of tissue and therefore several types of cells.
