Toby is a 16 year-old, pimple-faced boy, who has been working after school at a local pizzeria trying to make a little money for his new guitar. 2 days ago, toby was working in the kitchen, shredding pounds and pounds of cheese for pizza. the cheese was used to prepare pizzas for many customers. today, the pizzeria got many phone calls with complaints from customers experiencing nausea, vomiting, and diarrhea, blaming their symptoms on the pizza they ate yesterday.

You isolate an infectious substance capable of causing disease in plants, but you do not know whether the infectious agent is a bacterium, virus, viroid, or prion. you have four methods at your disposal to analyze the substance and determine the nature of the infectious agent.i. treat the substance with enzymes that destroy all nucleic acids and then determine whether the substance is still infectious.ii. microscope.iii. culture the substance on nutritive medium, away from any plant cells.iv. treat the sample with proteases that digest all proteins and then determining whether the substance is still infectious.if you already know that the infectious agent was either bacterial or viral, which method(s) listed above would allow you to distinguish between these two possibilities? a) ib) iic) ii or iiid) iv

Suppose you are facilitating an advisory group to address teen pregnancy. whom would you invite to the group and why ? .

Arah has optimal health, but she lives in a metro area that has high levels of air pollution. which dimension of health will be lower for sarah? a. psychological b. emotional c. social d. environmental