Blood flows down one leg and up the other leg. Facts Blood travels in both directions in the legs, arms, and elsewhere in the body. During blood circulation, the arteries carry blood away from the heart. The capillaries connect the arteries to veins. Finally, the veins carry the blood back to the heart.
Respiration is composed of two acts, first inspiration, and then expectoration.
This is partly true. Expiration is breathing out . . . The moon is a planet just like the earth, only it is even deader. The moon is not one of the 10 planets in our solar system. Nothing grows on the moon, but many things grow on the Earth.