2. Phytoplankton and algae are responsible for creating the majority of our oxygen supply – not land plants!

3. Some bacteria are used to clean oil spills
BP oil spill in Gulf of Mexico -

4. Bacteria decompose dead things and waste to recycle nutrients

5. Bacteria create drugs like penicillin and insulin
Discovery of penicillin -

6. Lactobacteria create cheese and yogurt

7. Bacteria in our intestines digest our food and create vitamins for us

8. Bacteria can contaminate food, creating toxins. Ex: food poisoning

9. Bacteria will spoil food and shorten shelf life

10. Pathogen = a BACTERIA, virus, or other microorganism that can cause disease
Streptococcus is a bacteria that harms us and leads to Strep Throat

11. When phytoplankton grow out of control = Red Tide can lead to toxins building up in shellfish, makes us sick!!