a spermatozoon or an ovum; a cell responsible for transmitting DNA to the next generation
any small compartment
(biology) the basic structural and functional unit of all organisms; they may exist as independent units of life (as in monads) or may form colonies or tissues as in higher plants and animals
a device that delivers an electric current as the result of a chemical reaction
a small unit serving as part of or as the nucleus of a larger political movement
activities associated with sexual intercourse
the properties that distinguish organisms on the basis of their reproductive roles
