The idea that assumes that behavioral phenomena are basically the same, regardless of culture, relies on

Studies comparing breast-feeding with bottle-feeding show that

breast-fed babies have fewer allergies and stomachaches. breast-feeding is recommended for all mothers and babies. scientific improvements make bottle-feeding a better choice. breast-feeding should stop when the baby gets the first tooth.

In a study of heart rate changes following smoked marijuana with 4 percent THC or 20 mg oral THC

A. the heart rate increased much more after oral THC. B. the peak effects were similar, but smoking produced a faster onset of effects. C. smoked THC increased heart rate, but oral THC had no effect. D. heart rates remained elevated for up to three days after smoking marijuana.