How can friends be both positive and negative influences in regard to tobacco

Does nicotine show up in a drug test when u pee in the cup

Dr. gill instructs dr. lawrence to monitor a patient's liver function during a transplant surgery, and shelly will later supply the patient with a list of local support groups for organ-transplant patients. which best describes these individuals' roles? dr. gill is the trauma team leader, and shelly is a scribe. dr. lawrence is an anesthesiologist, and shelly is a nurse. dr. gill is an is a trauma team leader, and shelly is a social worker. dr. lawrence is a surgeon, and shelly is a psychologist.

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