What is the name of one of the lower chambers of the heart that receives blood from the upper chambers and pumps it into the arteries? arteries

atria

ventricles

valves

Ab+cd-> ad+bc is what kind of reaction

Brad was almost hit by a speeding truck as he crossed the street. his heart began to race, and he felt extremely afraid as he jumped out of the way in just enough time to avoid the truck. a psychologist who supports the theory of emotion would claim that based on the arousal brad experienced, he appraised the situation and then labeled his racing heart as fear. a. james-lange b. cannon-bard c. schachter two-factor d. evolutionary

The nutrient facts label on a food package lists the following: iron 50%. what does this figure indicate?