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10. Natural Selection Essential Question: How does the evidence of geology, fossils, and comparative anatomy support the theory of evolution? Learning Target: Students will be able to identify and describe the four components of Natural Selection. Learning Task: I can take notes and color images to illustrate the processes of Natural Selection. I can identify the four components of Natural Selection.
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Welcome! Warm Up Friday 4/11/13 Week of 4/7 – 4/11 What is a Theory?
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4th Quarter Table of Contents 1 Title Assignment # Video: Evolution Questions Segment 1& 311 Evolution Vocab (7 Words)12 Evolution Notes: The Theory of Natural Selection 13 Video: Evolution Questions Segment 4&6 14 The Bean Bug Game15
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In your Lab Notebook: (Total 7) Evolution Vocab12 Darwin –a naturalist who proposed and provided scientific evidence that all species of life have evolved over time from common ancestors Natural Selection – survival of the fittest organisms that are the best adapted to their environment and will live long enough to reproduce and pass on those adaptations Theory – a explanation that ties together many hypothesis and observations
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Neil deGrasse Tyson, World-renowned Astrophysicist
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Evolution Notes For Today’s notes, you need to COLOR and TAKE NOTES The way you color the pictures will help you make sense of the ideas in the notes Examples of how you can color the pictures will be provided
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Evolution Notes: The Theory of Natural Selection Many scientists throughout history have examined and studied how and why groups of organisms change over long periods of time. Darwin took these scientists' contributions and developed the theory of natural selection. They are:
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I. Organisms face a struggle to survive What does struggle to survive mean? What was the struggle that the “bean bug” faced in the game? Life is a challenge & you must overcome those challenges to survive
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II. Organisms tend to over produce What is over production? Why do animals over produce? Leaving more than enough offspring to replace yourself -Some offspring will not live to reproduce -The more offspring you have, the more likely some will survive
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III. Organisms show variation among offspring What were the variations that we saw in the bean game? What is variation? What causes variation? Genetic differences in a population of living things Mutations in DNA
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IV. Organisms with the variation that is best adapted to their environment survive & reproduce Give an example of the best variation from the bean game? Why was it the best?
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As time goes by, make a prediction about the color of this population of lizards.
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Natural Selection Reading Natural Selection Review Annotate the Reading: At least 5 notes Before you leave today, write out the 4 components of natural selection in the boxes on the left For homework, read the article and find the example of natural selection within the elephant population Due: Tuesday 4/22
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Exit Ticket What theory of evolution was proposed by Charles Darwin?
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