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Speciation
Speciation

... There are 14 different species of finch on the Galapagos Islands that evolved from a common ancestor. How did it happen? Step 1: The Founding Fathers (or for the finches: The “Founding Feathers”) - A few finches end up in the islands on Island A. - Finches do not usually fly long distances over wate ...
Evolution – change over time
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... Over production of offspring Limited natural resources Heritable variations Differential or unequal reproductive success Offspring w/in a varied population, whose characteristics best adapt them to the environment are most likely to survive and reproduce • more fit individuals leave more offspring t ...
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Ch. 22-Evidence for Evolution Notesheet

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DISRUPTING GENETIC EQUILIBRIUM
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... Describe how Darwin’s observations on the voyage of the HMS Beagle led him to formulate and support his theory of evolution. Explain what Darwin meant by “descent with modification.” Explain what evidence convinced Darwin that species change over time. Explain how Linnaeus’ classification scheme fit ...
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Bio1100Ch22W
Bio1100Ch22W

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Bio1B Evolution section (Thomson) Fall 2003 lecture 1: Unity and
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... o Eg. Desert fox - large ears, arctic fox - small ears  Overproduction of offspring leads to competition for resource  Competition for limited resources results in differential survival.  Evolutionary Fitness: Individuals with more favorable phenotypes more likely to survive and produce more offs ...
CB-Evolution
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... Modified True/False: If the statement is true, write TRUE in the blank. If the statement is false, write FALSE in the blank as well as what should replace the underlined word/phrase. 1. Charles Darwin came up with the first theory of evolution. __________________ 2. Jean Baptiste de LaMarck believed ...
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... Hutton and Lyell argued that the earth is many millions of years old b/c  layers of rock take time to form  processes such as volcanoes and earthquakes shaped the earth and still occur today ...
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Adaptation

In biology, an adaptation, also called an adaptive trait, is a trait with a current functional role in the life history of an organism that is maintained and evolved by means of natural selection. Adaptation refers to both the current state of being adapted and to the dynamic evolutionary process that leads to the adaptation. Adaptations enhance the fitness and survival of individuals. Organisms face a succession of environmental challenges as they grow and develop and are equipped with an adaptive plasticity as the phenotype of traits develop in response to the imposed conditions. The developmental norm of reaction for any given trait is essential to the correction of adaptation as it affords a kind of biological insurance or resilience to varying environments.
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