13. Think of a concept that might be easier to understand or explain by making a model. Identify the concept, and explain why a model would be useful.

can you make it bigger i can't see it

answer;

-phase iii

explanation;

phase three begins with the transition of a recovered individual to a phase three team of the appropriate service. this phase usually takes place at a military medical facility in the united states. one of the goals of phase three is family reunification.