Red blood corpuscles are formed in the: A) Liver B) Bone Marrow C) Kidneys D) Heart Related MCQs: A ball is drawn at random from a box containing 70 White and 30 Red balls. The probability that the ball is either White or Red is? The lifespan of Red Blood Cells is …… days? The Life of red blood cells is: The lifespan of Red Blood cells is —–days