Tremulous iris

The sequence of amino acids determines the type of protein. Protein is synthesized according to the sequence of nucleoti..

According to Charles Darwin's theory of natural selection, preferable genes are favored by nature in the gene pool, and ..

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

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

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