Life and 98% of what you learn is a waste
Calcium
Vitamin D
Vitamin K
Phosphorus
vitamin C
The dependent variable alters
O type blood contains both A and B antibodies.
Answer: Four pulmonary veins.
Explanation: Oxygen and nutrient rich blood will flow from the lungs back into this part called the left atrium (Or as some will call it, the left upper chamber in the heart). From there, it goes through four pulmonary veins.
Hope I could help! :)
