1. What is biology?
It is the study of life.

2. Then how do we define LIFE?
Let’s see..
WHAT CHARACTERISTICS DO YOU THINK A LIVING THING MUST HAVE?

3. Characteristics of Life!
RESPONSIVENESS
React or respond to stimuli (running away)
2. HOMEOSTASIS
Maintain internal balance (body temperature)

4. 3.CELLULAR ORGANIZATION
(Made of one or more cells)
4. DISPLAYS ORGANIZATION
(cells –> tissues –> organs –> systems –> organism)

5. 5. REPRODUCTION
(pass along traits)

6. 6. REQUIRE ENERGY
run the processes of life
(take in food or make
own)

7. 7. Grow & develop–
Bigger in mass and abilities

8. 8. ADAPTATIONS
(change occurs over time to aid survival)

9. So, is “IT” alive???
Revisit the story from the beginning – have you changed your mind????