Clifford is a dog. clifford doesn’t really mind thunder and lightning at first. but then one day, he is out walking and there is a sudden bolt of thunder and lightning abruptly followed by heavy hail, wind, and rain, which frighten clifford. after this event, clifford is now afraid of thunder and lightning. in this example, what is the neutral stimulus?

What new form of music swept the nation in the 1950s a. chamber music b. hip-hop c. jazz d. rock-and-roll

What occurred during the free banking era? the dollar bill was introduced. the second bank of the united states was established. repaying of loans was not closely monitored. currency varied widely from state to state.

Which statement is a good description of a model? a) models are a description of nature based only on one or two variables. b) models are testable ideas but they are not very to most people. c) models are a description of nature that predicts more accurately than real events. d) models are an approximiation of a real system that omits all but most essential variables in a system.