Write a paragraph that describes what happens to a red blood cell as it moves from the right atria of the heart through the body. What structures will it pass through? How will it
interact with oxygen?

After leaving the heart, the red blood cell travels through the pulmonary artery to the lungs. There it picks up oxygen making the deoxygenated red blood cell now an oxygenated blood cell. The blood cell then makes it way back to the heart via the pulmonary vein into the left atrium.

Explanation:

second question answer yan

answer; hepatitis a& b can be passed through breast milk; (true);