1. Characteristics of Life
A Dr. Production

2. Is a flame alive? Why or why not?
Is a virus alive? Why or why not?
What is Life?
What are the characteristics of life?

3. Respiration Using oxygen to change food into energy Is NOT breathing
Inputs:oxygen + sugar
Outputs: Energy + carbon dioxide + water
Mitochondria makes ATP

4. Development
Meatball tadpolealien
Change in structure

5. Growth
Change in size

6. Ingestion
Taking food/nutrients into your cells

7. Digestion
changing food into a form that your body can use

8. Circulation Moving “stuff” around the body (oxygen, nutrients, wastes)
Does not require blood

9. Excretion
Getting rid of wastes

10. Reproduction
Making more of one’s self by passing on genetic material

11. Respond to stimuli
Reaction from an action in the environment

12. Made of Cells
All living things are comprised of one or more cells

13. Homeo stasis The ability or tendency of an organism or cell to maintain internal equilibrium by adjusting its physiological processes.

14. MetabolismThe chemical processes occurring within a living cell or organism that are necessary for the maintenance of life.

15. Name that characteristic…

16. Name that characteristic…

17. Name that characteristic…

18. Name that characteristic…

19. Name that characteristic…

20. Name that characteristic…

21. Name that characteristic…

22. Name that characteristic…

23. Name that characteristic…

24. Name that characteristic…

25. Name that characteristic…

26. Name that characteristic…

27. Any questions, problems or difficulties?