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This tutorial recognizes the importance of food as a source of energy that will fuel many biological processes. A good d..

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The hominid family diversified from the apes around 6 to 8 million years ago. Since then, the evolutionary path has prov..

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Biosecurity and Biocontrol

This lesson explores the impact of biosecurity threats, and why they need to be identified and managed. Examples to incl..

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The Water Cycle

The water cycle (also referred to as the hydrological cycle) is a system of continuous transfer of water from the air, s..

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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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Lotic communities have conditions that are rather harsh for typical plants. Thus, the diversity of plant species in loti..