BIO 124 Lecture Notes - Lecture 2: Globin, Motoo Kimura, Echidna
21 Mar 2016
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Predarwin: variation is accidental imperfection, plato (427-347 bc) Each organism has an unchangeable essence but each individual has its imperfections: aristotle (384-322 bc) Teleology the study of the ends or purposes that things serve. The best way to understand why things are the way they are is to understand what purpose they were designed to serve. A fish has eyes because it wants to see: jean-baptiste pierre antoine de monet, chevalier de. Species change over time to new species transform. Theory of phenotypic evolution: inheritance of acquired characteristics. Traits acquired during the course of an individual"s lifetime were passed on to offspring. Theory of speciation: species originate by spontaneous generation, and have not originated from common ancestors. Example: giraffes developed their long necks and front legs by feeding from the tops of trees behavior of stretching upwards modified the neck and legs.
