1. 1.B Characteristics of Life
Name 5 things you think all living things have in common.

2. 1.B Characteristics of Life
DOGRACER - acronym to remember the 8 characteristics or traits of living things
DNA- Deoxyribonucleic Acid
All living things contain DNA
DNA contains all the directions for building an organism (codes for proteins).
← this is what DNA looks like

3. 1.B Characteristics of Life
DOGRACER
Organized
Living things are organized cells→ tissues →organs →organ systems →organisms →populations →communities →ecosystems→ biosphere
Example this plant has specialized organs

4. 1.B Characteristics of Life
DOGRACER
Growth and Development
growth involves gaining mass/getting bigger
development involves changing or gaining skills
Example: human growth and development (learning to walk, developing language skills) or metamorphosis of a tadpole to a frog

5. 1.B Characteristics of Life
DOGRACER
React or Respond –
Living things respond to stimuli to maintain homeostasis
**Homeostasis – means keeping internal conditions constant to maintain life
Example: human body temp 98.6⁰
hot → sweat →evaporation of sweat cools you down

6. 1.B Characteristics of Life
DOGRACER
Adapt – to environment. Organisms develop behaviors, body structures and internal features that help them survive. This change happens over a long period of time (many generations) and is called evolution.
Example: hummingbird beak

7. 1.B Characteristics of Life
DOGRACER
Cells- All living things are made of cells. Organisms can be unicellular or multi-cellular
Prokaryote- (pro =no) cells without a nucleus (bacteria)
Eukaryote- (eu =true) cells with a nucleus (plants and animals)

8. 1.B Characteristics of Life
DOGRACER
Energy – Living things obtain and use energy
Autotroph- (self eat)make their own food (use sun’s energy) Example: plants
Heterotroph- (different eat) eat other living things
Example:

9. 1. B Characteristics of Life
DOGRACER
Reproduce -
Living things reproduce in order to make more of their species.
Sexual- organisms combine genetic information (mating)
Example: humans
Asexual- organisms make clones
Example: binary fission in yeast and bacteria

10. D NA O rganized G row R eact A dapt C ells E nergy R eproduce