Explain which type of service delivery model this scenario represents
Situation: A shy teenage boy feared crowds and struggled when called upon in class. His social worker discovered the
teen enjoyed and had a gift for computer math games. The social worker encouraged the teen to get involved in a small
after-school math team that worked with elementary students who needed help in math. In the small group setting,
using his gift for math, the teen began to overcome his fear of crowds.

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