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Developmental biology is a biological science that is primarily concerned with how a living thing grows and attains matu..

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The body is comprised of different elements with hydrogen, oxygen, carbon, and nitrogen as the major four. This tutorial..

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The gastrointestinal system breaks down particles of ingested food into molecular forms by enzymes through digestion and..

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Neurons generate electric signals that they pass along to the other neurons or target tissues. In this tutorial, you wil..