The situation is an example of negative reinforcement.
In the condition of negative reinforcement, a stimulus especially an unpleasant stimulus is removed due to a particular behavior of the person. In this case, the unpleasant behavior is the headache, and taking aspirin is a behavior of Nancy, which cut of the stimuli, that is pain relieving. In negative reinforcement a particular behavior is increased, in order to remove the unpleasant stimulus.
Answer;
-Saturated fats
Explanation;
-Cholesterol is transported in the blood by different carriers. The relative amounts of cholesterol transported by each carrier can affect one’s risk for heart disease. The two major blood cholesterol carriers are LDL (low density lipoprotein) and HDL (high density lipoprotein).
-LDL cholesterol is known as “bad” blood cholesterol, and functions to deliver cholesterol to cells throughout the body and can be deposited as “plaque” on artery walls.
-Dietary fat, especially saturated and trans fats, may raise blood levels of total and LDL cholesterol. High total blood cholesterol levels and LDL cholesterol levels increase risk of heart disease.
Answer:
The Endangered Species Act was formulated in 1973. This Act was made in order to protect the threatened and endangered species of both plants and animals and also to protect the habitats in which these species live.
One of the major success was that there were many species which actually recovered from this act. For example, the population of the Kirtland's warbler increased from 210 to 1415 from 1973 to 2005.
One of the major controversies which arose from this act was that the critics claimed that this act failed to show major recovery of animals. Out of the total 2000 endangered species listed, only 28 species were properly recovered.