1. Biology Unit One- Characteristics of Life and Classification

2. Characteristics of Life --- What is Biology?

3. Biology- The study of living things
Biology- The study of living things - Interactions between living things and between living things and the environment

4. Organism= Living thing

5. Get out your foldable from yesterday…
Fold it like a pamphlet…. Into three long sections….
Then, fold it in half…. So you end up with 6 boxes….

6. 6 Characteristics of Life:
1. Made of Cells & have DNA
2. Reproduce
3. Grow & Develop
4. Obtain/use energy (metabolize)
5. Homeostasis
6. Adapt 6

7. Cell- basic unit of life DNA- genetic info 2. Reproduce
1. Made of Cells & have DNA
Cell- basic unit of life
DNA- genetic info
2. Reproduce
-to further the species
Sexual – different offspring
Asexual – identical offspring
Species: group of similar organisms that can interbreed and have
fertile offspring
3. Grow vs. Develop
Become larger Mature, become
like an adult

8. Autotroph (self-feeding) ex. plants
4. Obtain/ use energy (metabolize)
Autotroph (self-feeding) ex. plants
Heterotroph (consumes others) ex. human
5. Homeostasis - *maintain internal balance (sweating)
Without it, you will die!
6. Adapt
Adaptation: help you survive in environment
Evolution: change in species over a long time period

9. Levels of Organization in Biology
From Simple
To Complex

10. Levels of Organization in Biology
From Simple
Atom Molecule
OrganelleCell
Tissues Organ 
Organ system
OrganismSpecies
To Complex

11. SCIENTIFIC METHOD- series of steps to solve a scientific problem 1
SCIENTIFIC METHOD- series of steps to solve a scientific problem 1. Problem 2. Hypothesis 3. Experiment 4. Data 5. Results 6. Conclusion 7. R/R or Repeat 7

12. 3. Experiment -a test of a hypothesis
1. Problem- scientific
* Cannot be opinion
* Give ex. of opinion vs scientific-
2. Hypothesis- a testable statement
Ex. If….I study…then I will have better grades b/c I am prepared.
3. Experiment -a test of a hypothesis
Independent variable: what is tested
Dependent variable: what is measured
Constant: stay the same
Control:normal/measure/compare against

13. Quantitative Qualitative - numbers letters, words
4. Data- info collected
Quantitative Qualitative
- numbers letters, words
- 5 cm, 75 L. Descriptive
5. Results- charts/graphs
6. Conclusion
7. Revise / Redo or
-R/R- hypo wrong
- Repeat- hypo right

14. Why repeat? : to verify results…turn into a theory… eventually a “law”

15. Inference– a conclusion reached on the basis of evidence and reasoning
Observation- gain information by using your senses
Sample Size– repeat experiment at least three times to validate results
Placebo- “fake” pill used to make experiment more valid