Physiology With respect to oxygen and carbon dioxide transpo A The slopes of the oxygen and carbon dioxide content curves are similar B Equal amounts of oxygen and carbon dioxide can be carried in 100 mL of blood C The presence of carbon dioxide decreases the P50 for O2 D The presence of oxygen lowers carbon dioxide content in the blood 💡 Explanation With respect to oxygen and carbon dioxide transpo ✓ Correct Answer: D. The presence of oxygen lowers carbon dioxide content in the blood