1. Characteristics of life
Mr. Douglas EDHS Biology

2. What makes something Alive?
Movement?
Water moves

3. What makes something Alive?
Breathing,
eating?
Fires needs oxygen
and fuel

4. What makes something Alive?
reproduction?
robots can be
Programmed to
make more of themselves

5. Turn to Your Neighbor……
Which of these characteristics is the most important, and why?

6. Alive!!! What makes something Alive?
Biologists have come up with a list of
Characteristics. If something has or
has had all these characteristics, it is an
Organism. It is alive!
Alive!!!

7. Characteristics of life
Grows and Develops
all organisms grow and develop over time.

8. Characteristics of life
Reproduction

9. Turn to your neighbor…….

10. Characteristics of life
Adaptations evolve over time
an adaptation is any inherited characteristic that results from changes to a species over time

11. Characteristics of life
Made up of one or more cells
The cell is the basic unit of life. From unicellular organisms like Bacteria to multicellular organisms like you and me

12. Characteristics of life
Requires energy
All organisms need to make their own food (autotroph)
Or eat something that made it’s own food (heterotroph)

13. Characteristics of life
Responds to stimuli
Stimulus = any thing that makes a reaction or a response in a organism
stimulus
Response

14. Characteristics of life
Maintains homeostasis
Regulation of an organisms internal environment to maintain life

15. Characteristics of life
Displays organization
All living things display levels of organization

16. The end