BIOL-L 111 Study Guide - Midterm Guide: Quinarian System
Document Summary
Can miss 5 questions to get an 88% 1859- publication of the origin of species. Lyell: fossils in different layers of rock. Realizes they were living species: believed the newer species drove out older/different species all the way up to the present day. Darwin: struggle for existence was between the members of the same species, better ones win, worse ones lose. Definition of species: ask how different 2 things have to be to be considered different species. Henslow: wanted to use crystallography techniques to categorize species as well: species are immutable objects. Darwin: believes species are mutable/transformable: uses dissent with modification. When did they last have a common ancestor. Species: a group of interbreeding organisms that is reproductively isolated from other groups. Natural human tendency to put similar things together and make separate piles for different things. Different environments present different challenges for the organism.
