Welcome Back! 3/01/17 What is one trait that all species share?

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Presentation transcript:

Welcome Back! 3/01/17 What is one trait that all species share? What traits do a European Squirrel and Snowshoe Hare share? 3. Create a trait that the Owl and the Eagles share.

Population Dynamics vs Evolution

How can random events and migration impact population dynamics? Genetic Drift Bottleneck Effect Founder Effect Punctuated Equilibrium

Genetic Drift The change of genotype frequency in a small population due to some random event. Individuals die = Genes not passed on

Bottleneck Effect Major reduction in the size of a population due to environmental events Natural Disasters

Punctuated Equilibrium Rapid speciation occurs between long periods of time without a change.

Embryological Comparison Early embryo development shows common ancestry