True or false: With age, the tunica interna of blood vessels thickens.

What is the only part of your body called that should touch the ball when setting in volleyball?

Max is a child with special needs. what is the best way his family can support max? a. place max in an institution that looks after such children b. limit his exposure to the outside world c. provide max with as normal a childhood as possible d. prevent max from mixing with other children with special needs

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