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Humans are capable of only one mode of reproduction, i.e. sexual reproduction. Haploid sex cells (gametes) are produced ..

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Sigmund Freud and Carl Gustav Jung

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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This tutorial looks at the relationship between organisms. It also explores how energy is passed on in the food chain an..

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The sea was teeming with life. Eventually, through reproduction and continued variation, fish came about. There are over..

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Certain species are capable of expressing characteristics indicative of the state of the ecosystem they occupy. They are..

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Lotic Communities & Animals

A running water environment offers numerous microhabitats for many types of animals. Similar to plants, animals in lotic..