The blood in veins is d. traveling to the heart.

b. moving in single file.

a. leaving the lungs.

c. carrying oxygen.

D.  Traveling to the heart

Explanation:

The arteries carry oxygen and nutrients away from your heart, to your body's tissues. The veins take deoxygenated blood from the tissues and back to the heart.

the bald eagle got 50 because everything gets 10% of what they consume and since 50 is ten % of 500 hundred that means the   grasshopper had to have consumed a plant with 5,000 calories of energy

answer; i believe the correct answer is (anemia);