Answer:
1.The Skeleton, Muscle and the skin
2.he want to know the reason of why does the Skin and Muscle are always following him wherever he where
3.the skin give him a Vitamins D which is essential for the formation of calcium stored in him
4.muscle help him to move without him he cannot get anywhere and do anything because the muscle is the one who do it
5.No, because Skin and Muscle are helping to move or do something and help the skeleton to do it
Explanation:
That's the answer sorry for the grammars you can also correct it hehe I hope it's help
