It got removed. Sorry it's not academic but I wanna help , this isn't a question but for the ppl who struggle with sh... Heres a tip, draw a butterfly on your area you h!rm. This butterfly is special , you have to take care of this butterfly , and make sure it doesn't wash off. Also.. if another person draws a butterfly on that area it's even more special. I just wanna help- but if it gets removed fine.

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