Touching a hot pan and yanking your hand away--That is nervous system.
Going through puberty is controlled by the pituitary gland.
jumping up and down is controlled by the muscular system.
Breathing harder during a jog is controlled by the respiratory system.
Getting energy to sit through class by eating cereal and a banana is controlled by digestive system and muscular system.
hope it helps
They seperate during anaphase of mitosis
D. Conserve Energy so that only sequences are synthesised when required.
P.s Please don't try to erase the answer just to get your points back....
Hope this helped with your class question work :)