He was one of the only two presidents to be impeached
Operant conditioning is reinforcement, classical conditioning relies more on association between stimuli and responses. A second distinction is that much of operant conditioning is based on voluntary behavior, while classical conditioning often involves involuntary reflexive behavior.
This answer is true.
An ethnic group is a category of people that identify with each other based on similarities such as: common ancestry, language, history, society or culture.
Some ethnic groups can be <em>ethno-religious,</em> meaning that its members are also united by a common religion. Some examples of an ethno-religious groups are: the Jews, the Yazidis or the Amish.
An ethnic group can be composed of <em>many religious groups.</em> Some examples of such ethnic groups are the Kurds (both Shias and Sunni ) or the Mapuche people in Chile (catholic Mapuche as well as Animist Mapuche groups).
