You are called out for “boy fallen.” As you approach the scene, you find a 12 year old boy lying at the base of a tree. The boy tells you he fell from one of the branches about halfway up the tree. He says he landed on both feet and then fell forward, catching himself with his hands. A. The boy tells you that his hands, feet, neck, and legs hurt a lot. Which bones or joints may have been injured? B. What would you include in this assessment?

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