A child is praised for using his fork instead of his fingers to eat some spaghetti. This is an example of __________ reinforcement

Hormones secreted by the pancreas after we begin to eat, which control fat levels, proteins, and carbohydrates, are called ________ and ________

a) insulin; glucagons b) insulin; serotonin c) glucagons; serotonin d) glucagons; necon

Your cousin Brenda says she is suffering several symptoms and claims they are due to premenstrual syndrome (PMS). Which of the following symptoms that she cites is the most questionably linked to the menstrual cycle?

a. breast tenderness b. cramps c. irritability and depression d. water retention