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This tutorial looks at the adaptations of freshwater plants for them to thrive in still water habitats. Familiarize your..

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Meet the colorful takahē, an extremely rare flightless bird. Find out more about its unique features and why they matte..

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This study guide tackles plant roots in greater detail. It delves into the development of plant roots, the root structur..

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Different mental disorders are described here. Read this tutorial to get an overview of schizophrenia, affective mood di..

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Independent Assortment and Crossing Over

This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..

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Freshwater Communities & Plankton

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