Normative history-graded changes are best studied by employing which of the following

Antioxidants can be found in

dairy products. vitamins A, C, and E. sea salt. oil-based laxatives.

Ivan Pavlov studied the reflexive flow of saliva in dogs. He used meat powder or other food to trigger the salivation. It was later observed that the salivation in the dog was triggered even before the food was placed in its mouth

In this experiment, ________ was the unconditioned response. a. food b. thoughts of anticipation c. salivation d. the sight of the food dish