Q. The blood returning to the heart from lungs via pulmonary vein has more (Solved)
1. RBC per ml of blood
2. Haemoglobin per ml of blood
3. Oxygen per ml of blood
4. Nutrient per ml of blood
- c. Oxygen per ml of blood
1. RBC per ml of blood
2. Haemoglobin per ml of blood
3. Oxygen per ml of blood
4. Nutrient per ml of blood