The circulatory and respiratory systems work together to provide cells with oxygen and nutrients and remove waste products, such as carbon dioxide. When you need more oxygen, how does the circulatory stystem respond?

a
More blood is scent to the lungs and less blood is sent to the rest of the body.
b
The blood vessels to the arms and legs constrict to conserve oxygen.
c
The heart beats at a faster rate to match the rise in breathing rate.
d
Blood moves more slowly through the organs to carry away more wastes.

Read the scenario below and answer the question that follows. hallie is reading a novel in the library when susan, her best friend, slumps down in a chair next to her. susan doesn't say anything, but hallie knows that susan is upset because she is slumping in her seat and rolling her eyes. a psychologist would explain that hallie is interpreting her friend's emotion based on a. the behavioral component of emotion b. her friend's ability to regulate emotion c. the verbal component of emotion d. the physiological component of emotion select the best answer from the choices provided a b c d