Earth pollution is the presence of harmful substances in earth's atmosphere
true or false ?

Bacteria can cause different infections, check all that apply. a. sore throat b. measles c. ear infection d. flu e. cavities

When data collected on the performance of a healthcare facility suggests that quality standards have not been met, what is one method that can be used to correct the problem?

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