Darwin's big idea - Lecture 2

What was William Paley’s analogy, and what did it say

• Watch and the tree

• Life becomes more complex over time similar to how the watch has become more complex over time

John- Baptiste Lamark’s arguement & analogy

Organisms acquire traits in one life time and heritably passes it on

Who did August Weissman prove wrong? Explain

• Lamark

• Somatic cells are not inherited. Inheritance only comes from germ cells

Charles Darwin’s book

The origin of species

What Are Darwin And Wallace Known For?

Developed 1st theory of evolution and natural selection

2 facts Proved By Darwin And Wallace

1. All organisms have a common ancestor

2. Natural selection leads to evolution

True or False: Malthus & Darwin came up with the struggle of existance

False, Darwin published the origin of species and Malthus came up with the struggle of existance

What did Wallace and Mathus come up with?

The survival of the fittest

What Is The Thesis Of The Struggle For Existance

populations grow exponentially but there aren’t enough ressources