An industrial designer wants to determine if the new design for a piece of office equipment will result in fewer errors. The designer sets up a machine with the old design in one room and a machine with the new design in a second room. He counts how many errors are made using each of the two machines. In this study, the number of errors that are made would be
a. a control variable.
b. the dependent variable.
c. the independent variable.
d. an extraneous variable.
B
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Adam has had difficulty controlling his insulin level for years. While he monitors his blood glucose level and tries to eat right, he finds that he still has insulin levels that are too high. In fact, medical tests have shown that his body chronically oversecretes insulin. Based on research, Adam likely _____
a) is very thin. b) never feels hungry. c) has too much activity in his ventromedial hypothalamus. d) is overweight or even obese.
Programmed theories, including the programmed longevity theory, the endocrine theory, and the immunological theory, operate with the basic assumption that a biological timetable controls the aging process
Indicate whether the statement is true or false.