Julie needs to find a primary care physician. which of the following processes would be the best for her to follow?
a. make a list of doctors, check on their skills, make an appointment
b. contact two or three doctors, research their skills, make a list of the ones you dislike
c. evaluate different doctors, contact other doctors, make a list of their skills
d. make a list of doctors, make an appointment, research their credentials

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