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The diversification of several new species from a recent ancestral source, each adapted to utilize or occupy a vacant ad..

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

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Animals adapt to their environment in aspects of anatomy, physiology, and behavior. This tutorial will help you understa..

Early Mammals on Earth
Early Mammals on Earth

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 Human Nervous System

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