Dispatch : Week 30 Class 1 Mr. Besina

1. Dispatch: Week 30 Class 1 Mr. Besina In 2001, 92 rabbits were born, and 60 died. 14 rabbits immigrated to the area, and 17 emigrated from the area. Find the population growth rate in 2001. 2. Quickly sketch an exponential growth curve and a logistic growth curve. Which one has a carrying capacity? Label it. Take an educated guess at the following questions: 3. What is “pink slime?” 4. What is a “food recall?” Why are foods recalled? What foods do you know that have been recalled?

2. Businesses in the food industry are responsible for keeping our food safe. It is unethical to sell food that might cause disease.

3. Individual consumers need to educate themselves about the dangers of consuming certain foods. It’s their own fault if they get sick.

4. As a consumer, I’m only concerned with the ingredients in my food, and not the HOW the food was made or processed.

5. Our government needs to hold food manufacturers accountable for food-related illness and death.

6. I would pay more for food that was labeled as healthier in some way.

7. Capitalism renders us helpless to change how food is produced or priced... we just have to make the choices that work for us.

8. Kevin's Law

9. Pink Slime Ammonia Treated Beef

10. Our Immune System: The Good Guys

11. Pathogen: A disease-causing bacteria, virus, or fungus Immune System: Protects us from pathogens.

12. Pathogens 1st Non-specific Defenses 2nd Non-specific Defenses Immune Response (Specific Defenses)

13. We have 3 lines of defense: • 1st Nonspecific Defense: • Keeps all pathogens out of the body. • (like a fence or wall) • 1. Skin keeps all pathogens out

14. Pathogens enter through holes in our skin. • (ex.______________________________)

15. 2. Mucus, saliva, and tears protect these openings. • They trap pathogens and contain enzymes to kill them.

16. Pathogens First Lineof Non-specific Defenses Second Lineof Non-specific Defenses Immune Response (Specific Defenses)

17. What happens if pathogens DO enter our body?

18. 2nd Nonspecific Defense: • Inflammatory Response- • Blood vessels expand. • Increases blood flow & the # of white blood cells to infection site. • WBCs eat bacteria.

20. 2. Fever- • Body temp. increases above normal to slow down pathogen growth

21. Pathogens First Level of Non-specific Defenses Second Level of Non-specific Defenses Immune Response (Specific Defenses)

22. Specific Defense (Immune Response): Antigens- Markers found on the surface of bacteria and viruses

23. Antibodies- A protein that binds (sticks) to antigens.A unique antibody is created by a different B cell. Antigen binding sites

25. Antibody levels Second exposure First exposure Time Once your body has made antibodies for a specific pathogen, it will be able to make them faster in the future. You can not get sick from the same pathogen twice! You are immune, or protected.

26. Vaccine- An injection of a dead or weakened virus to force your body to make antibodies

27. History of Vaccine: • From Latin vacca meaning “cow” • Smallpox • Edward Jenner • Noticed that milkmaids who got sick from cow pox did not get smallpox. • So he had an idea…

28. Cow pox

29. Small pox

31. How does all the IMMUNE SYSTEM relate to FOOD PRODUCTION? Antibiotic Resistance Antibiotics living conditions E. coli Mastitis