What method of learning uses stimuli and responses?

If birth rates fall below the replacement level, then a country is in which stage of demographic transition? a. urbanization/industrialization b. mature industrial c. postindustrial d. pre-modern

Cammy is cooking hamburger patties for lunch. after a few minutes on the grill, she checks the internal temperature of the patties and finds them to be at 135°f. what should cammy do next?

Health and cardio respiratory fitness occurs when the heart is working, at minimum, 50 percent of heart rate reserve. true or false