In monstrous plants, we often get direct evidence of the possibility of one organ being transformed into another; and we can actually see, during the early or embryonic stages of development in flowers, as well as in crustaceans and many other animals, that organs, which when mature become extremely different are at first exactly alike.
Munstro-landareetan aurkitzen dugu maiz organo bat eralda eta beste bat izatera hel daitekeen froga arteza; eta bai loreen garapenaren hasieretan edo enbrioi-etapetan, baita krustazeoetan eta beste animalia askotan ere, argi ikus dezakegu heldurikoan arras ezberdin bihurtzen diren organoak hasiera batean berdin-berdinak direla.