Tartar

tartar (Science: dentistry) Another name for calculus..

The gastrointestinal system breaks down particles of ingested food into molecular forms by enzymes through digestion and..

This lesson looks at population attributes, regulation, and growth. It also covers population genetics, particularly gen..

Stems primarily provide plants structural support. This tutorial includes lectures on the external form of a woody twig ..

The evolution of the species of the genus "Homo" led to the emergence of modern humans. Find out more about human evolut..

Nutrients in the soil are essential to the proper growth of a land plant. This tutorial deals with the properties of soi..

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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