Which of the following are true about positive feedback mechanisms? Check all that apply. They help to form blood clots in response to an open wound.

They respond to changes by pushing back in the opposite direction.

They cause the body to sweat when the outside temperature is too warm.

They accelerate a process that has already started.

The affordable care act has expanded mental health and substance abuse benefits to 62 million people and is an addition to the mental health parity act of 2008. the changes and additions require mental health coverage in small group and individual plans where people were not previously covered. what is the biggest benefit of these changes? what major challenges are still associated with mental health coverage? explain your reasoning.