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Geological periods is a study guide that cites the different geological periods on Earth's timeline. Each has a brief ov..

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Plants, like animals, produce hormones to regulate plant activities, including growth. They need these hormones to respo..

Genetics – Lesson Outline & Worksheets
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Sigmund Freud and Carl Gustav Jung
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In this tutorial, the works of Carl Gustav Jung and Sigmund Freud are described. Both of them actively pursued the way h..

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Independent Assortment and Crossing Over

This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..