The brain signals the body of an animal to move by transmitting electrical impulses through the neurons. An animal is then able to walk or run because

F: the glands of the endocrine system work with the skin if the integumentary system.

G: the heart of the circulatory system works with the stomach of the digestive system.

H: the kidneys if the excretory system work with white blood cells of the immune system.

J: the muscles of the muscular system work with the bones of the skeletal system.