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The Earth's ecosphere was rapidly changing and throwing up a wide range of ecological niches that new adaptive organisms..

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The circulatory system is key to the transport of vital biomolecules and nutrients throughout the body. Learn about the ..

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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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Control of Body Movement

Some of the body movements can be controlled at will, others cannot. The body has a motor program, which is the pattern ..

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The nervous system is essentially a biological information highway. This tutorial gives an overview of the nervous syste..

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Explore why New Zealand has such unique flora and fauna, and learn why long periods of geographical isolation. This less..

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