Approximately what percent of American adolescents who report symptoms of drug use receive any treatment?

A reinforcer that removes something unpleasant from a situation is called a ________ reinforcer

a. positive b. negative c. primary d. secondary

The ability to recognize other's emotional states is important to our survival. We are all genetically programmed to express our emotions and our facial expressions in the same ways

After reviewing the video "Recognizing Basic Emotions" discuss why natives from another country would be able to tell what emotion you are expressing without language. What will be an ideal response?