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Plants need to regulate water in order to stay upright and structurally stable. Find out the different evolutionary adap..

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A still body of water may be disturbed by a variety of factors. One of them is wind. In fact, it is considered as the pr..

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Genetic Control – On and Off Genes

Genes are the blueprint of our bodies, a blueprint that creates a variety of proteins essential to any organism's surviv..

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Muscle cells are specialized to generate force and movement. Learn about the different types of muscle tissues in this t..

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The Origins of Life

This tutorial digs into the past to investigate the origins of life. The section is split into geological periods in the..

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Plant cells have plastids essential in photosynthesis. They also have an additional layer called cell wall on their cell..