The millions of different species of plants, animals, and microorganisms that live on earth are related by descent from a common ancestor.
Genetic variation is preserved or eliminated from a population through natural selection.
Explain how genetic variation is preserved or eliminated from a population through Darwinian natural selection. Distinguish among directional selection, stabilizing selection, and disruptive selection. Explain how evolutionary processes have resulted in the biodiversity of today. State the Hardy-Weinberg Law and list the conditions under which this law holds true. Explain divergent evolution, convergent evolution, and coevolution.