1. Biology
The study of Life
Bio: life
ology: study of

2. Characteristics of Life
Response to Stimulus (Movement)
Growth & Development
Reproduction
Organization
Homeostasis
Use Energy

3. Response to Stimulus
Stimulus is any response to an organism’s environment that causes it to react.

4. Growth & Development All organisms change during their lives
Growth increases size
Development is like the stages of life that humans go through: infant, adolescent, (puberty), adult.

5. Reproduction The species must reproduce
This is how the species survives
A group of organisms that interbreed and produce fertile offspring are called a species.

6. Reproduction (cont)
Reproduction is a process that can allow gradual change in the characteristics of a species over time.
Change over time is evolution.
Change over time explains the great diversity of life.

7. Organization Each species has its own type of body organization
cells, tissues, organs, systems are levels of organization
All body systems interact with other systems.

8. Homeostasis
The ability of the body of an organism to maintain it’s internal environment or conditions in the body.
Example: body temperature
Maintaining balance

9. Use Energy All living things obtain energy from their environment.
They use this energy to move, grow and develop, reproduce, have organized body systems, and maintain homeostasis.
Autotrophic vs Heterotrophic

10. Theme of Biology Living things do not exist in isolation
They are all functioning parts in the delicate balance of nature.
Life is dynamic, not static

11. Many Fields in Biology Microbiology Ecology Botony Zoology Mammology
Herpitology
Entomology
Medicine
Plus many more