Use this letter grading system to determine the answer to the following question. Percentage grades range from 100 percent for the highest to 0 percent for the lowest.
Letter grades can range from 5 for the highest to 1 for the lowest.

Alina received a 98 percent on a history test and a score of 5 on a math test. Which letter grade would those scores translate to?

A
B
C
D

Uzette has a history of seizures. the doctor has given her medication, which has allowed her to be seizure-free for many years. from which disorder does suzette most likely suffer?

What are your thoughts on nonhuman trials? do you feel that testing should be done on animals? what are the advantages and disadvantages with nonhuman trails?

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