1. Unity, Diversity, & Evolution

2. Unity All Life Forms Have Common Features

3. Common Properties of Life

4. Made of Cells Basic unit of structure & function

5. Maintain a constant internal environment (homeostasis) Examples: temperature, sugar level, salt level, hydration, etc.

6. Metabolism Total of all chemical reactions. Examples:

7. Respond to Stimuli Examples:

8. Reproduce Essential to survival of species.

9. Heredity & Evolution Heredity: Traits passed to offspring. Info found in DNA.

10. Evolve Evolution: Change in species over generations.

11. Grow and Develop

12. Growth- change in number of cells which leads to increase in size. Development- change in a single individual during life cycle.

13. Cells- Similar but Different

15. Diversity Life is arranged into 3 Domains

18. Evolution Explains the Unity & Diversity of Life

19. Charles Darwin Descent with Modifications Natural Selection

20. 2 Observable Features Individual Variation Unequal Reproductive Success