The nervous system is sending nerve receptors to your brain so that your arm the muscular system will throw the ball the skeletal system allows yourself to hold the ball and works with the muscles to contract and the amp system allows your body to create energy so you can throw the ball
Non-disjunction occurs when a the chromosomes do not split properly during meiosis resulting in too few chromosomes I believe.
The answer to your question is "Diploid.
I hope this helps!
