1. Features of living things Lecture 1.3

2. What does it mean to be living? There are differences between living and non- living things. There are differences between living and non- living things. Icicles grow, but are they alive? Icicles grow, but are they alive? A fire responds and converts energy, but is it alive? A fire responds and converts energy, but is it alive?

3. Features of living things All living things share the same 8 characteristics All living things share the same 8 characteristics

4. Living things are made of units called cells

5. Living things reproduce

6. Living things are based on a universal genetic code Models of deoxyribonucleic acid: DNA

7. Living things grow ….

8. And develop Wood frog life cycle

9. Development is change over time

10. Living things obtain and use materials and energy

11. Energy is stored in the form of ATP

12. Living things respond to their environment

13. Living things maintain a stable internal environment : homeostasis Why does one shiver and the other sweat?

14. As a group, living things change over time Horse and plant evolution