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The cell is defined as the fundamental, functional unit of life. Some organisms are comprised of only one cell whereas o..

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Gene Action – Operon Hypothesis

This tutorial focuses on the way genes control and determine every aspect of the body. It describes lac operon as an exa..

Still freshwater and plants
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Plants in lentic habitats have features not found in terrestrial plants. They acquired these features as they adapt to t..

Regulation of Biological Systems
Regulation of Biological Systems

Regulation of Biological Systems tutorials are focused on the modulation of biological systems from cell to population l..

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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..