6. He proposed the idea of
catastrophism.
They belived that the Earth had
6000 years old: species could not
have changed that much.
Extintions were produced by natural
disasters and were followed by
repopulations because of divine
creation.
7. He proposed the Uniformitarian idea.
Earth´s features have been by same
geological process that could be
observed in the present acting
gradually over an inmense period of
time.
8.
9.
10.
11. Homologus structures: traits that are similar in
different species because the species share a common
ancestror.