1. KEY CONCEPT Understanding biology can help you make informed decisions.

2. Biology knowledge
Knowledge of biology helps you understand your health.
food allergies
potential effects of obesity

3. potential effects of obesity cancer
food allergies
potential effects of obesity
cancer
effects of alcohol, tobacco, and other drugs
brain
lungs
heart
liver
kidneys

4. Knowledge of biology can help you understand environmental issues.
interactions in ecosystems
pollution
biodiversity

5. Biotechnology
Biotechnology is the use and application of living things and biological processes.

6. DNA testing in medicine and forensics
transgenic (genetically modified) crops
transgenic bacteria

7. Questions are raised about the use of biotechnology.
safety of genetically modified crops
spread of undesirable genes
decrease in biodiversity
ethical considerations

8. Biology presents many unanswered questions.
Over the past 50 years, biological knowledge has greatly increased.

9. There are still many questions to answer in biology.
How are memories stored in the brain?

10. There are still many questions to answer in biology.
How are memories stored in the brain?
How do viruses mutate?
surface proteins
lipid
envelope
nucleic acid
capsid
Does life exist on planets other than Earth?