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Lecture 3

BIOL*1070 Lecture 3.pdf

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BIOL 1070
T.Ryan Gregory

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Variability at multiple biological scales▯ ▯ Abundance▯ Intraspecific variation▯ Diversity ▯ Disparity▯ How do they relate to each other?▯ ▯ Variation - differences within SAME species▯ ▯ Natural selection - NON-RANDOM. variation that is heritable that results in differences in survival/reproduction▯ Genetic drift - RANDOM. “Evolution by chance”. Random sample is allowed to reproduce. ▯ ▯ Bottleneck: Loss of individuals from initial population is not related to particular traits. i.e. storm
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