a theory of organic evolution claiming that new species arise and are perpetuated by natural selection.The theory that was created by the english biologist Charles darwin, where the ‘survival of the fittest’ in species would guarantee long term survival. See the natural selection tutorial.
This tutorial recognizes the importance of food as a source of energy that will fuel many biological processes. A good d..
This tutorial looks at the relationship between organisms. It also explores how energy is passed on in the food chain an..
Obtaining air outside an aquatic environment required species to acquire suitable adaptations, and this was the case of ..
Nutrients in the soil are essential to the proper growth of a land plant. This tutorial deals with the properties of soi..
Genes are the blueprint of our bodies, a blueprint that creates a variety of proteins essential to any organism's surviv..
The hominid family diversified from the apes around 6 to 8 million years ago. Since then, the evolutionary path has prov..