Scratch test

The sea was teeming with life. Eventually, through reproduction and continued variation, fish came about. There are over..

The hominid family diversified from the apes around 6 to 8 million years ago. Since then, the evolutionary path has prov..

Cell respiration is the process of creating ATP. It is "respiration" because it utilizes oxygen. Know the different stag..

Different pregnancy and birth control and contraception strategies are described. Read this tutorial to learn each of th..

This tutorial looks at the mutation at the gene level and the harm it may bring. Learn about single nucleotide polymorph..

Genes are expressed through the process of protein synthesis. This elaborate tutorial provides an in-depth review of the..

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