1. Characteristics of Life
EQ: How can you tell if something is alive?

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
Unicellular
Living Things are made up of Cells.
a.) CELL: Collection of living material enclosed within a barrier
b.) cells are basic unit of life
c.) Unicellular: made up of one cell
d.) Multicellular: made up of many cells
Multicellular

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

5. a.) inheritance of traits is carried on DNA
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: increase in size & shape
b.) DEVELOPMENT: mature over time
c.) living things have a lifespan
Growth
Development

7. 5. Living Things Use & Need Energy a
5. Living Things Use & Need Energy a.) energy comes from food, used to maintain body 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
6. Living things respond to their surroundings a.) they react to a stimulus
b.) an action causes a reaction
c. ) reaction is called a response
d.) this involves one individual

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
b.) change to better survive in environment
c.) these changes take place over a long period of time & involve the entire species