1. Characteristics of Life 1) are made of cells 2) reproduce 3) are based on genetic code of DNA 4) grow and develop 5) obtain and use materials and energy 6) respond to their environment 7) maintain a stable internal environment 8) taken as a group, living things evolve

2. Unicellular and multi-cellular

3. CELLS

4. Cells

5. Reproduce Chapter 1 What is Life? Asexual reproduction - involves a single parent; offspring are genetically identical to the parent. Sexual reproduction - involves 2 parents; offspring are genetically diverse. – DNA from both parents

6. DNA –deoxyribonucleic acid

7. DNA is the genetic code that instructs the cells what to do. Also give inheritance

8. Living things grow

9. Differentiation is when cell change into different cells that perform other functions

10. Develop means to change

12. Plants get ENERGY by photosynthesis

13. Animals get ENERGY by eating other organisms

14. Decomposers (bacteria and fungi) get Energy by feeding on dead plants and animals

15. Respond to environment Trees loose leaves in the fall

16. Maintain internal stable environment Called homeostasis EXAMPLE– HUMAN BODY TEMPERATURE WHEN YOU GET HOT --- SWEATING WHEN YOU GET COLD -- SHIVERING

17. EVOLVE TO CHANGE OVER TIME Life is always changing….. On the level of DNA…… Change = Evolution