According to Charles Darwin's theory of natural selection, preferable genes are favored by nature in the gene pool, and ..
Viruses possess both living and non-living characteristics. This unique feature distinguishes them from other organisms...
Plants are characterized by having alternation of generations in their life cycles. This tutorial is a review of plant m..
Nutrients in the soil are essential to the proper growth of a land plant. This tutorial deals with the properties of soi..
Part of the genetic information is devoted to the synthesis of proteins. mRNA, a type of RNA, is produced as a transcri..
The nervous system is essentially a biological information highway. This tutorial gives an overview of the nervous syste..
