macatolangelica61
Blood passes through the heart twice per circuit, it is referred to as a double circulatory system. The right pump transports deoxygenated blood to the lungs, where it is oxygenated before returning to the heart. The left pump circulates the newly oxygenated blood throughout the body.
Answers & Comments
Explanation:
Pula daw eh ayun char. It is because it pump bloods.