Researchers are 100 percent confident that differences in behaviors of identical, monozygotic twins are due to differences in their environments

Thorndike's law of effect states that:

a) organisms have a tendency to revert to instinctual behaviors after a behavior patterns has been learned b) behaviors take longer to disappear- through the process of extinction- when thy have been acquired or maintained through partial, rather than continuous, reinforcement. c) organisms are capable of forming cognitive maps, or mental representations of the physical surroundings, without being aware of the process d) behaviors are more likely to be repeated when followed by a pleasurable outcomes and less likely to be repeated when followed by unpleasant outcomes.

The discovery that psychologically disordered Behavior could result from syphilis infections facilitated The credibility and acceptance of

A) the biopsychosocial approach B) the medical model C) the DSM-5 D) epigenetics.