General Ecology Basic Principles. n Definition of principle / law: –Hypothesis –Theory –Law n How do we test hypotheses? –Support or falsification? –Consequences.
Homework 2 due F 2/23 Bonus 1 due W 2/28. Evolution: A species’ genetic component changes as the individuals reproduce. These changes are based on how.
How Does Evolution Work? Individual organisms cannot evolve. Populations of a particular species evolve. Natural selection acts on the range of phenotypes.
EvolutionEvolution Year 10 Semester 2. Introduction 1.How old is the universe? About 15 billion years since Big Bang. 2.How old is the Earth? About 4.5.
Selection and Evolution
Generating Diversity: how genes and genomes evolve Erin “They call me Dr. Worm” Friedman 29 September 2005.
Natural Selection & Evolution. Answer these questions as we go… 1.What island did Charles Darwin research while on the HMS Beagle? 2.What is natural selection?
1.2 MECHANISMS OF EVOLUTION – I IMSS BIOLOGY ~ SUMMER 2012.
Mechanisms of Evolution
Microevolution How does evolution work? Targets: 10.Explain the significance of gene pools in understanding evolution. 11.Tell how genetic drift, gene.
Population Genetics. 1859: Darwin and the birth of modern biology (explaining why living things are as they are) – Heritable Traits and Environment
Evolution of Life How Organisms Survive. What Is Necessary To Survive? Variation differentVariation is an appearance of an inherited trait or behavior.