All living organisms are made up of cells. Cells are the basic units of life. In complex living organisms, cells are organized into tissues, tissues are organized into organs, and organs are organized into organ systems. What characteristic of life does this information represent?
A.
Life is composed of only complex organisms.
B.
Life can be arranged in a structural hierarchy.
C.
Life does not demonstrate order in its systems.
D.
Life tends to be chaotic and random.