Where does oxygen-rich blood go after leaving the lungs?
A B C D
the brain. the heart. the kidney. the stomach.
Question: Where does oxygen-rich blood go after leaving the lungs?
(A) the brain.
(B) the heart.
(C) the kidney.
(D) the stomach.

Answer: (B) the heart.
Answer: (C) the kidney.
Question: Where does oxygen-rich blood go after leaving the lungs?
(A) the brain.
(B) the heart.
(C) the kidney.
(D) the stomach.
Answer: (B) the heart.