How many chambers does the heart contain?A.3B.4C.5D.6
Each lung is fed oxygen by a separate bronchus.
Air is warmed and moisten as it moves through both the mouth and nasal passages. Please select the best answer from the choices provided.
Nutrients and waste both enter and leave cells through a process called __________. A. effusion B. diffusion C. fusion D. emulsion Please select the best answer from the choices provided.
The right ventricle transports oxygenated blood to the lungs.
The human cardiovascular system is considered closed because __________.A.blood is continuously circulated in the body.B.blood provides nutrients to organs.C.blood collects oxygen from the lungsD.there are no holes for blood to enter or leave the system
What function do capillaries serve in the cardiovascular system?A.carry blood to the brainB.return blood to the lungsC.help control body temperatureD.replace old blood cells Please select the best answer from the choices provided.
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