1. 1 Study of Biology copyright cmassengale

2. 2 What is Biology? Biology is the study of all living things Living things are called organisms Living things are called organisms Organisms include bacteria, protists, fungi, plants, & animals copyright cmassengale

3. 3 All Living Things Share Common Characteristics 1. Basic Unit is the Cell 2. They Reproduce 3. All Based On Universal Genetic Code (DNA) 4. Grow & Develop copyright cmassengale

4. 4 Common Characteristics 5. Obtain & Use Materials & Energy 6. Respond To Their Environment 7. Maintain A Stable Internal Environment 8. AS A GROUP, Living Things Evolve, That Is They Change Over Time copyright cmassengale

5. 5 Characteristics of Organisms copyright cmassengale

6. 6 All Organisms are made of Cells copyright cmassengale Cells are the smallest living unit of an organism.

7. 7 Organisms Reproduce to Pass on their Genetic Traits copyright cmassengale

8. 8 Cells Have a Genetic Code copyright cmassengale

9. 9 Organisms Grow & Develop copyright cmassengale

10. 10 Cells Require Food & Energy copyright cmassengale

11. 11 Metabolism Sum of all the chemical reactions in an organism All require energy Sunlight is the ultimate energy for life on Earth copyright cmassengale

12. 12 Organisms Respond to Stimuli Organisms Respond to stimuli (Temperature, Water, Food Supplies, etc.) In Order To Survive & Reproduce copyright cmassengale

13. 13 Homeostasis Keeping The Internal Environment (Homeostasis) Of The Cell or Organism Within The Ranges Required For Life Stable internal conditions of pH, temperature, water balance, etc. copyright cmassengale

14. 14 Living Things Evolve Groups Of Organisms (Not Individuals) Change Over Time In Order To Survive Within Changing Environments. Fossil records show changes in groups of organisms copyright cmassengale

15. 15 Life is Organized on Several Levels copyright cmassengale

16. 16 Levels AtomsMoleculesOrganelles Cells – life starts here TissuesOrgansSystemOrganism copyright cmassengale

17. 17 Levels PopulationCommunityEcosystemBiosphere copyright cmassengale

18. 18 copyright cmassengale