Please help !! i dont understand

Usha is giving a presentation on the cardiovascular system. one of her slides shows a diagram of the blood moving from the heart to the arms and legs. which type of circulation is the slide illustrating? systemic circulation pulmonary circulation systolic circulation diastolic circulation

According to the online content activity for this lesson, what should you do if you do not understand the material you are trying to learn? a. try a new approach to learning the material. c. re-read the material b. give up d. find someone to give you the answers to the test select the best answer from the choices provided a b c d

All of the following physical reactions occur when our fight-or-flight response is triggered  except  a.dilating pupilsb.increasing heartbeatc.increasing digestiond.increasing perspiration  select the best answer from the choices providedabcd