Tephanie belongs to a ppo that has a $1,000 deductible. the deductible applies only if stephanie meets with doctors outside her network. there is no co-payment. stephanie incurred a bill of $2,000 when she met with an out-of-network specialist for a thyroid problem. she owes $1,400 out of pocket for the bill. if the ppo pays $600 after stephanie has paid her deductible, what is the co-insurance clause of the ppo that stephanie belongs to? 50/50 60/40 70/30 80/20

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