1. The Science of Biology Biology: the scientific study of living things
From small processes to big interactions
Organism: any living thing
What are the characteristics of all living things?

2. Made of Cells Cell: basic component of all living things
Living things are highly organized
Can be single- or multi-celled

3. Universal Genetic Code
All use DNA for genetic code

4. Require Energy
Living things obtain and process energy, usually in the form of ATP
Energy is required for activities such as movement

5. Growth and Development
Living things add mass and change shape

6. Reproduction
All living things can produce a new generation of the same organism
Can be sexual or asexual

7. Response to Environment
Living things respond to stimuli in the environment

8. Homeostasis
Living things maintain an internal state of balance in a constantly changing environment

9. Adaptation Populations of things become adapted to their environment
Evolution: the process by which populations become adapted