Answer:
It means we are sad and stuff
Explanation:
Because of what happened
Answer: It enters the right atrium through the right ventricle.
Explanation: . The right ventricle pumps the blood to the lungs where it becomes oxygenated. The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium.
Answer:
a. kidney
I believe that is correct