To spring up; to come into action, being, or notice; to become operative, sensible, or visible; to begin to act a part; to present itself.
To come up from a lower to a higher position.
To come up from one's bed or place of repose; to get up.
To come into being; develop.
To change; transform.
Of a population, to acquire or develop (a trait) in the process of biological evolution.
To give off (gas, such as oxygen or carbon dioxide during a reaction).
To move in regular procession through a system.
Of a trait, to develop within a population via biological evolution.
Of a population, to change genetic composition over successive generations through the process of evolution.
To cause something to change or transform.