Answer: Food safety is important for our health not to over eat and I've heard that if you're over weight you have less years of living. But I don't really think that happens in all cases.
It is not true that you need to do cardiovascular exercises to get rid of fat. You can get rid of fat by eating less than you spend or by doing weight exercises. Both of these are also good for someone who wants to get rid of fat and are helpful as well.
They check their body and ask personal questions
Well I can't really answer how they work together to maintain homeostasis. But I can tell you that the muscular system helps the nervous system by protecting the nerves. And the nervous system returns the favor by sending messages to the muscles for muscle movement.