Curvier’s Catastrophism Lyell’s UNIFORMITARIANISM Lamarck’s Inheritance of Acquired Characteristics

… the idea that catastrophes such as floods, diseases, and droughts periodically destroyed species living in a particular region, allowing species from neighbouring regions to repopulate the area Curvier’s Catastrophism

Uniformitarianism: Lyell’s theory that geological processes operated at the same rates in the past as they do today

Slow changes occurred in the past … Slow changes occur today too …

Uniformitarianism: Lyell’s theory that geological processes operated at the same rates in the past as they do today Slow changes occurred in the past … Slow changes occur today too … … and the Earth is probably older than 6000 years

Hmm.. If changes happen slowly … then animals would become progressively better adapted to their environments

Proposed the following. Inheritance of acquired characteristics - the idea that characteristics acquired during an organism’s lifetime can be passed on to its offspring

Lamarck suggested that body parts not used would eventually disappear. This idea is called use and disuse.

Curvier’s Catastrophism Lyell’s UNIFORMITARIANISM Lamarck’s Inheritance of Acquired Characteristics

Okay I agree with the idea that there are slow changes.. And these slow changes occur in populations The rest of you are wrong. Welcome Darwin’s Theory of Evolution by Natural Selection

Q# 3-6, Page 327