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Organisms employ different strategies to boost its defenses against antigens. Humans have an immune system to combat pat..

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This tutorial deals with the abiotic factors of the freshwater environment that determine what sort of life would be sui..

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Movement of Molecules Across Cell Membranes

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

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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ATP & ADP – Biological Energy

ATP is the energy source that is typically used by an organism in its daily activities. The name is based on its structu..