03 ch22selection2008print
2. Evolutionary Forces
Evolution Part 2 - Mechanisms and Processes
WARM-UP On your warm-up paper –What conditions caused the average shade of the “dot” population to evolve? Your lab (dot lab) –OPEN YOUR LAB BOOKS AND.
3 Causes of Deviation from Equilibrium 1. Natural Selection ○ Stabilizing selection ○ Disruptive selection ○ Directional selection 2. Genetic Drift.
AP Biology 2007-2008 Evolutionary Forces What changes populations?
What is a species? –a species is a population of organisms that can successfully interbreed but cannot breed with other groups. How do we classify species?
AP Biology Evolution Unit What is Evolution? Change in the genetic makeup of a population over time. Fitness – those with favorable variations for survival.
Sunìstemi
Block Day- May 23, 2012
