Biomimetic architecture uses nature as a model, measure and mentor to solve problems in architecture. It is not the same as biomorphic architecture, which uses natural existing elements as sources of inspiration for aesthetic components of form. Instead, biomimetic architecture looks to nature as a model to imitate or take inspiration from natural designs and processes and applies it to the man-made. It uses nature as a measure meaning biomimicry uses an ecological standard to judge the efficiency of human innovations. Nature as a mentor means that biomimicry does not try to exploit nature by extracting material goods from it, but values nature as something humans can learn from.