Homeostasis - <span>the tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes. autotroph - </span><span>An organism that manufactures its own food from inorganic substances, such as carbon dioxide and ammonia. mitochondria - </span><span>an organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. It has a double membrane, the inner layer being folded inward to form layers (cristae).</span>