Answer:
Blood comes into the right atritum from the body, moves into the right ventricle and is pushed into the pulmonary arteries in the lungs. after picking up oxygen, the blood travels back to the heart through the pulmonary veins into the left atrium, to the left ventricle and out to the body's tissues through the aorta
I believe the answer is axial skeleton
A heart surgery where you have two patients who need a new heart in the next 24 hours or they die but only one heart is available
And a lung transplant where you have 5 people missing their left lung and one with their right lung missing and one day one right lung is available but if you pick the right lung then the left lungs become unavailable until next year and they need to get their lungs in one month
The answer to your question is,
D. Can cause ulcers
-Mabel <3