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In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..

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Molecules move within the cell or from one cell to another through different strategies. Transport may be in the form of..

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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..

Human Nervous System
The Human Nervous System

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

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Amphibians & Early Reptiles

Obtaining air outside an aquatic environment required species to acquire suitable adaptations, and this was the case of ..

Human Neurology
Human Neurology

Human Neurology deals essentially with the nervous system of humans. It also features the various theories put forward b..