1. Intro to Biology

2. What is biology? The study of life
Biology offers a framework for asking and answering questions about the natural world.

3. Characteristics of Life
All living things share 6 characteristics
allow us to define what is living and what is not

4. 1.Cells and Organization
Cells are the smallest unit of life
All living things are organized in some way
Ex: all humans have 2 legs, 2 arms, a torso, a neck, and a head

5. 2. Response to Stimuli
Stimulus = a physical or chemical change in the environment
Living things are able to react to these changes
Homeostasis = maintaining stable levels of internal conditions (ex. temp)

6. 3. Has DNA
DNA is the genetic material which gives all living things their individual traits
Passed down by parents

7. 4. Metabolism (Using Energy)
All organisms use energy to power life processes
Ex: photosynthesis, food intake

8. 5. Growth and Development
Increase in size
Accomplished through cell enlargement or cell division
Development
Process of becoming
a mature adult

9. 6. Reproduction Producing more organisms
Necessary for the survival of a species
Ensures passing on of favorable traits

10. Major Themes in Biology
Biological systems
Cellular Processes
Form and Function
Reproduction and Inheritance
Interactions with the Environment
Adaptation and Evolution
Energy and Life
Regulation
What examples can you give of each of these themes?