1. What are the characteristics of life? 8 characteristics all living things have in common

2. What is Biology?  The study of living things (organisms)  The study of interactions of living things  bio-life  ology-study of

3. 8 Characteristics of LIFE 1.Living Things are made up of Cells. a.) cells are basic unit of life i.) Unicellular: made up of one cell ii.) Multicellular: made up of many cells Unicellular Multicellular

4. 2. Living Things Reproduce: a.) produce offspring which resemble parents b.)asexual reproduction: has only one parent c.) sexual reproduction: requires two parents Asexual Sexual

5. 3. Living Things are based on a genetic code. a.) inheritance of traits is carried on DNA

6. 4. Living things Grow and Develop a.) GROWTH: an increase in size & shape DEVELOPMENT: a change in the physical form or physiological make-up of an organism b.) All living things eventually die Growth Development

7. 5. Living Things Use & Need Energy a.) energy comes from food, used to maintain bodily functions b.) AUTOTROPH: produce own food c.) HETEROTROPH: must consume food d.) DECOMPOSER: breaks down dead material for food

8. 6. Living things respond to their surroundings a.) they react to a stimulus which causes a reaction b. ) that reaction is called a response c.) this involves one individual Potential stimuli: Light Gravity Temperature Odor Sound Heat Water Pressure

9. 7. Living things maintain a stable internal environment a.) HOMEOSTASIS: internal balance b.) examples: sweating, panting, shivering, etc.

10. 8. Living things Evolve a.) adapt to long-range changes in environment to better survive in environment b.) these changes take place over a long period of time & involve the entire species

11. Mini Quiz: The following are all examples of the characteristics of life. Identify each one. A.Adapt D. genetic code G. Respond to stimulus B.Made of cells E. Grow and develop H. Homeostasis C.Reproduce F. Use/need energy 1.You eat a hamburger for lunch. 2.A baby gains 3 pounds in one week and begins to recognize voices. 3.A polar bear has white fur to blend in with the snow. 4.Your start to cry whenever you get a shot at the doctor’s office. 5.You begin to shiver because it is cold outside. 6.Red and white particles make up part of your blood. 7.A chick hatches.