Cardiac output equals:.A. Blood leaving one ventricle during one beat of the heart. B. Systolic pressure + diastolic pressure. C. Heart rate. D. Blood flow through the entire vascular system. E. Stroke volume.

Why are carbon dioxide concentrations expected to increase? a carbon dioxide concentrations are expected to increase, because fossil fuel burning is expected to increase b. carbon dioxide concentrations are expected to increase, because of an increase in agriculture. c.carbon dioxide concentrations are expected to increase, because more land will have to be cleared for increasing populations and agricultural use. d. all of the above select the best answer from the choices provided mark this and return save and exit next submit submit

Which part of the spine is likely to cause a nerve signal to travel faster? a. backbones b. white matter c. nuclei d. gray matter

What are the characteristics of subsystem