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Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..

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Birth Control and Contraception

Different pregnancy and birth control and contraception strategies are described. Read this tutorial to learn each of th..

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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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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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Proteins have a crucial role in various biological activities. Get to know how proteins are able to perform as enzymes, ..

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Plant Meristems and Growth

In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..