Practice check: Which option answers this correctly: which organ pumps blood around the human body?

✅ B. 1796

✅ B. Adrenalin

✅ B. 3 feet

✅ D. Processes materials so they can be used again

a: Creates new raw materials from nothing | b: Prevents all waste automatically | c: Always turns waste into fuel | d: Processes materials so they can be used again Read more

✅ D. The Moon

a: Europa | b: Titan | c: Phobos | d: The Moon Read more

✅ D. Red, Green, Blue

✅ D. Gravity

a: Magnetism | b: Friction | c: Buoyancy | d: Gravity Read more

✅ A. Red blood cells

a: Red blood cells | b: Plasma proteins | c: Platelets | d: White blood cells Read more