The pulmonary artery and its branches deliver blood rich in carbon dioxide (and lacking in oxygen) to the capillaries that surround the air sacs. The circulation of the blood through the lungs. The veins that return the oxygenated blood from the lungs to the left atrium of the heart.
All of the above. I know this becasue I took Sex Ed last year.
Uh girl bye ahaha all i know it pain and that’s all and uh pain even more pain
The correct answer is option D. Calcium.
Low bone density can be due to a lack of calcium thus requiring supplementation.