Biological Evolution Vocabulary Dec. 5, 2011. Charles Darwin- a naturalist that proposed that over time, new species developed from pre-existing species.
developed from pre-existing
observed that the continents
on Earth appeared to fit together
like a big jigsaw puzzle.
Plate Tectonics – the theory that Earth’s lithosphere is broken into large sections (tectonic plates) that move and change over time.
Asthenosphere- the molten layer of the Earth on which the tectonic plates float.