What is biology? It is the study of life.

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

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

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

5. REPRODUCTION (pass along traits)

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

7. Grow & develop– Bigger in mass and abilities

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

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