The general idea of evolution is that the present arises from materials and forms of the past. Although evolution is most commonly associated with the biological theory explaining the process of descent with modification of organisms from common ancestors, evolution also describes changes in the universe. Steady state, balance, and homeostasis also describe equilibrium states. Interacting units of matter tend toward equilibrium states in which the energy is distributed as randomly and uniformly as possible. The form or shape of an object or system is frequently related to use, operation, or function.
Function frequently relies on form.
Understanding of form and function applies to different levels of organization. Students should be able to explain function by referring to form and explain form by referring to function. Copyright 1995 National Academy of Sciences . All Rights Reserved .