I've moved this to HW & Coursework because it sounds like that type of question. You'll need to give us some indication you've given it a bit of thought on your own before we can help. Why don't you start by thinking about the circulatory and respiratory systems, since that's a little easier and more obvious. Where might the two systems communicate?
alright, circulatory carries nutrients to cells, wastes away, and chemical messages from cells in one part of body to distnat target tissues, and the repiratory i sthe process wgere oxygen is supplied to cel of body, and wastes are taken out