gametophyte: the gamete-bearing individual or phase in the life cycle of a plant having alternation of generations
organism: a living thing that has (or can develop) the ability to act or function independently
vx gas: a highly lethal nerve agent used in chemical warfare; a toxic liquid that penetrates the skin or lungs to disrupt the nervous system and stop respiration; in combat VX gas is deployed by detonating a container over the target area and can persist in the environment up to several weeks after release