Answer to Question 1
Social stress can lead to bad health via suppressed immune function.
Answer to Question 2
Pavlov first introduced a stimulus of food to a dog, and immediately the dog would begin to salivate. Pavlov then introduced a sound simultaneously when he introduced the food and the dog still responded with salivation. Finally, Pavlov introduced the sound without the presence of the food and he found that the dog was conditioned to salivate to the sound alone because it associated the sound with the food. Most experts agree that people are conditioned to a large extent. We respond to stimuli in our environment in learned ways that are almost automatic. However, we can retrain ourselves to respond in ways that are more productive and less stressful.
Species richness increases with island size.
The theoretical design of nature reserves, based on the tenets of island biogeography.
Walrus using its tusks to hang on breathing hole in the ice near St. Lawrence Island, Bering Sea
The patient and his family meet with the nurse to discuss progress on the patient care plan.
The lesson of Easter Island