BIO 5 Lecture Notes - Lecture 2: Microevolution, Macroevolution
Document Summary
We can see natural selection in action. The drought changed conditions that only birds with large beaks survived and passed those genes to their kids. Important one is that ns can only act on a variation that is already present in a. Not just pushing towards some perfect form. Variation in the population some king snakes look more like coral snakes than. Differential survival + reproductive success king snakes that look more like. Because predators avoid them b/c they think they"re coral snakes. coral survived better + reproduce more than those that don"t. others. Make sure you say that microevolution had occurred!!! In future generations there is a greater % of king snakes that look like coral snakes. Look at the photo and compare leg amounts, spider look, etc There is variation: spider population some by random chance looked more like ants than others. Heredity traits that make the spiders look more (or less) like ants are heritable.
