Tartar

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

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

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

This tutorial noted some of the physical and chemical factors that provide the framework of a running water community in..

Viruses possess both living and non-living characteristics. This unique feature distinguishes them from other organisms...

This tutorial investigates the genetic diversity in more detail. It also delineates how certain alleles are favored over..

Plants are responsible for incredible feats of molecular transformation. Plant processes, such as photosynthesis, photop..

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