According to Salovey and Mayer (1990), emotional appraisal and emotional expression appear to present as related to , the ability to comprehend another's feelings and re-experience these feelings within one's self (to feel with another).

changes in factors like average income and preferences can cause an entire demand curve to shift right or left. this causes a higher or lower quantity to be demanded at a given price. demand curves relate the prices and quantities demanded assuming no other factors change. it is important for consumers to know this information, because it is crucial for them to know what they can afford and can't afford. i hope this .

answer; biological;

answer; how people relate to each other and influence each other;