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Life, as we know it today, is presumed to have started in the sea and many of them were likely eukaryotic animal-like or..

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This tutorial presents Gregor Mendel's law of dominance. Learn more about this form of inheritance and how it can be pre..

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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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Learn about the general structure of a eukaryotic gene, the transcription factors, and post-transcriptional regulation....

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

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Planktons are microscopic organisms that live suspended in aquatic habitats. There are two groups: the phytoplanktons an..