A scientist conditions a dog to salivate in response to the sound of a high-pitched tone. The researcher then presents a low-pitched tone. The dog fails to salivate. The dog is demonstrating:

Suppose that a flower nursery benefits from having a butterfly farm located only a few miles away, because the presence of the insects greatly improves flower pollination. lawyers for the two companies meet to draft a legal document specifying the number of butterflies the farm promises to maintain in exchange for payments to be made by the nursery. which of the following types of private solutions to the externality of pollination has occurred in this case? charities moral codes and social sanctions integration of different types of businesses contracts it’s important to note that sometimes private solutions to externalities do not work. for example, this occurs when communications barriers or social customs are important enough relative to the potential gains involved that (a) the government must step in (b) the private solution is not feasible (c) the market system has a crisis

Epicureanism advocated reason and duty. select the best answer from the choices provided t f

Dr. redbull conducts a study to determine whether her new energy drink children perform better on spelling tests. she randomly assigns children to one of two groups: group 1 receives her energy drink and group 2 receives water. she then gives both groups a spelling test and compares the results. which of the following is true about this study? a. group 1 is the dependent variable and group 2 is the independent variable. b. this is a correlational study. c. group 2 is the experimental group. d. the independent variable is the type of drink the children receive.