Roy is having trouble passing his calculus course. no matter how hard he studies, he cannot seem to pass a calculus test. eventually, roy gives up and stops studying or even coming to calculus class. roy's behavior can be explained as an example of: a)the partial reinforcement effect. b)classical conditioning. c)biological preparedness. d)learned .

The procedures for reporting potential unanticipated problems involving risk to subjects or others to the irb are: stated in the human subject protection regulations, but not in the drug or device regulationsincluded in the consent processdetermined by research staffdetermined by the institution in its written policies and procedures

Martha entered into a contract with terry, an art dealer. according to the contract, terry was to supply 18 th century artifacts to martha for the play she was directing, and martha was ready to pay $50,000 for this. another director needed the same artifacts and was ready to pay $60,000. terry decided not to sell the artifacts to martha. in this case, the court may order terry to:

What impact does geography have on where people live in brazil?