Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function.
I'm pretty sure it does. Because if the ball was small, it bounces more higher than a ball that is big. It has much more mass and density.
The answer is Poliomyelitis. Poliomyelitis or also called as Polio, is a kind of disease involving a virus known as polio-virus that attacks the different parts of the nervous system that results to the paralysis of limbs or different parts of the body.
Can you explain the first part a little more