Nasal speculum

to assess the ear during,ear examination..

Plants are characterized by having alternation of generations in their life cycles. This tutorial is a review of plant m..

Hormones are essential in the regulation of the activity of the various biological systems of the human body. The ineffi..

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

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

Meiosis is a form of cell division that creates gametes. It is comprised of two divisions that in the end, the resulting..

Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, th..

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