Life uses energy . Life grows, develops, reproduces. Life has a genetic program. Living organisms respond to the environment. Life maintains themselves in fluctuating envirnoments - regulation, homeostasis .
Life evolves .
Unifying Themes -With rapid information flow and new discoveries, biology is in a continuous state of flux. There are, however, enduring unifying themes that pervade all biology. There are levels of organization beyond the individual organism. These build from the individual organism to the panalpy of life on earth. Emergent Properties Emergent property Property that emerges as a result of interactions between components With each step upward in the biological hierarchy, new properties emerge that were not present at the simpler organizational levels.