Deliver Oxygen and nutrients and to remove carbon dioxide and other waste products
The ADA prohibited businesses from discriminating in any workplace function, including hiring, promotion, and firing, against those with disabilities. It also required businesses to make their stores accessible to those who are disabled. That includes making them wheel chair accessible and able to navigated safely by those who are blind and those who are deaf. Businesses who remained in violation of these acts were open to lawsuits and expensive fines.
The answer should probably be no if this is an assignment. But if not, you only live once, right? ;p