Las observaciones de Hutton sobre la naturaleza del desarrollo de la arenisca serían un ejemplo de teoría de las placas tectónicas.
catastrofismo.
el ciclo del carbono.
gradualismo.

ya the other dude is right

the cell is the smallest structural and functional unit of living organisms, which can exist on its own. therefore, it is sometimes called the building block of life. some organisms, such as bacteria or yeast, are unicellular—consisting only of a single cell—while others, for instance, mammalians, are multicellular.