What are pandemic diseases?
a. diseases that spread from person to person through contaminated water sources
b. diseases that are transmitted by parasites, such as mosquitoes
c. diseases that are specific to a particular place, climate, or region
d. diseases that spread over a large area and affect large numbers of people

Which factor is least likely to influence one's choice of purchase? a friend's opinion the advice of a salesperson the price of an item the day of the purchase

Now think of ways in which using healthcare services effectively can foster your health and ways in which not being aware of them is a health risk

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