1. LIFE

2. SO….What does it mean to be living?
Biology…What is it?
Biology is the study of life.
SO….What does it mean to be living?

3. Characteristics of Life
To be considered living, an organism must…..
1. Be made of cells.
-Unicellular
-Multi-cellular

4. Characteristics of Life
To be considered living, an organism must…..
2. Grow and develop.

5. Characteristics of Life
To be considered living, an organism must…..
3. Carries out metabolism
A combination of chemical reactions
in which an organism builds up or breaks
down materials

6. Characteristics of Life
To be considered living, an organism must…..
4. Be based on a universal genetic code.
-DNA

7. Characteristics of Life
To be considered living, an organism must…..
-Asexually
5. Reproduce
-Sexually

8. Characteristics of Life
To be considered living, an organism must…..
6. Maintain homeostasis
-Stable internal environment

9. Characteristics of Life
To be considered living, an organism must…..
7. Adapt/ Respond
Organisms detect and respond to stimuli
from their environment

10. Characteristics of Life
To be considered living, an organism must…..
8. Evolve
-change over time, as a group

11. Now you try
- On the left side of your notebook, decide which image best shows each characteristic of life. Explain how each image represent the characteristic.