Biology is used in many aspects of environmental management. It is only by understanding how flora and fauna flourish that we can manage the environment properly to preserve them. Biology is also used extensively in farming where the environment is adapted to provide optimised growth of certain crops or livestock. Understanding and manipulating the biology of wheat plants have played a big part in human consumption, for instance. The same goes for crops grown for non-food purposes, such as cotton. In addition, biology plays a significant role in life sciences, including nearly all aspects of modern Western medicine.