Answer:
6 is d. They don't receive directly from the veins. They receive it from the atria.
7 is c. The mitral valve is a bicuspid valve, not semilunar.
8 is a. Superior and inferior vena cava bring the blood to the heart
9 is a, the aorta
10. is d. Carries blood from the heart to the lungs.
Explanation:
