1. BIOLOGY
The study of life – all living things, from single celled organisms to complex multicellular organisms and the global interactions of millions of different organisms

2. I. UNIFYING THEMES The cell is the basic unit of life Homeostasis
Unicellular, multicellular, differentiation
Homeostasis
Reproduction and Inheritance (DNA, gene, sexual and asexual reproduction)
Evolution (natural selection)
Interdependence of organisms (ecology, ecosystems)
Matter, Energy and Organization (photo, autotrophs, heterotrophs)

3. II. CHARACTERISTICS OF LIFE
Cells
Highly Organized
Energy use - metabolism
Homeostasis
Growth – cell division and growth
Reproduction

4. III. SCIENTIFIC METHOD Observe Ask a ? Form hypothesis
A possible explanation for what was observed
Intelligent guess
If ….., then….. statement

5. III. SCI METHOD cont’d Experiment Setup: Control Dependent variable
Test hypothesis under controlled conditions
Setup:
Control
Dependent variable
Independent variable
Constants

6. III. SCI METHOD cont’d Draw conclusions Share knowledge
Accept or reject hypothesis
Share knowledge
After hypothesis withstands testing, may become theory

7. IV. MICROSCOPY Magnification vs. resolution Know SI prefixes
Light microscopes
Electron microscopes
SEM
TEM