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Theory of Evolution by Natural Selection loading

The two general ideas of Darwin’s Theory are evolution and natural selection.

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  • Read
    Theory of Evolution by Natural Selection

    Theory of Evolution by Natural Selection

    by CK-12 //at grade
    Covers Darwin's theory of evolution by natural selection.
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  • Video
    Variation in a Species

    Variation in a Species

    by CK-12 //at grade
    Learn how variation can be introduced into a species.
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  • Video
    Natural Selection and the Owl Butterfly

    Natural Selection and the Owl Butterfly

    by CK-12 //at grade
    Learn how the "Owl Butterfly" may have gotten the spot on its wings.
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  • Video
    Chasing Beetles, Finding Darwin

    Chasing Beetles, Finding Darwin

    by CK-12 //at grade
    It's been 150 years since Charles Darwin published On the Origin of Species. Yet his ideas remain as central to scientific exploration as ever. This video follows follows entomologist David Kavanaugh, who predicted that a new beetle species would be found on the Trinity Alps. Find out if his prediction came true.
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  • Lesson Plan
    Introduction to Natural Selection Lesson Plan

    Introduction to Natural Selection Lesson Plan

    by CK-12 //at grade
    In this activity students will read two theories about how species change over time. They will participate in an activity that requires them to apply their knowledge. Students arrange sets of pictures in a way that demonstrates the two different theories.
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  • Activity
    Introduction to Natural Selection Student Activity

    Introduction to Natural Selection Student Activity

    by CK-12 //at grade
    Student worksheets for Introduction to Natural Selection Lesson Plan.
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  • Activity
    Bird Speciation

    Bird Speciation

    by CK-12 //at grade
    Students develop a simulation of bird adaptation to an island environment. They extend their simulation to include change in the environment.
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  • Practice
    Theory of Evolution by Natural Selection Practice
    Estimated4 minsto complete
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  • Critical Thinking
    Theory of Evolution by Natural Selection Discussion Questions

    Theory of Evolution by Natural Selection Discussion Questions

    by CK-12 //at grade
    A list of student-submitted discussion questions for Theory of Evolution by Natural Selection.
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  • Real World Application
    A Great Leap To Speciation?

    A Great Leap To Speciation?

    by CK-12 //at grade
    Covers methods of evolution other than natural selection, effects of invasive species and ecosystems. Looks at changes in the cane toad population since their invasion of Australia.
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  • Real World Application
    Wild Horses

    Wild Horses

    by CK-12 //at grade
    Covers artificial selection and domestication of animals by looking at conservation efforts to revive populations of the only truly wild, as opposed to feral, horse population remaining.
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  • Real World Application
    South of the Equator

    South of the Equator

    by CK-12 //at grade
    Covers domestication of animals in South America. Looks at the use of molecular techniques to determine relationships between species, and how environmental change is affecting remaining wild population of animals.
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  • Study Guide
    Theory of Evolution Study Guide

    Theory of Evolution Study Guide

    by CK-12 //at grade
    This study guide looks at Darwin's theory of evolution and natural selection. It also looks at some of the evidences supporting the theory of evolution (comparative anatomy, comparative embryology, biogeography).
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