It only takes one biological cell to create an organism. A single cell is able to keep itself functional through its 'mi..
Plants in lentic habitats have features not found in terrestrial plants. They acquired these features as they adapt to t..
This tutorial describes the different types and causes of brain damage. Find out how genetics, physical injury, lack of ..
The evolution of the species of the genus "Homo" led to the emergence of modern humans. Find out more about human evolut..
The kidneys are responsible for the regulation of water and inorganic ions. Read this tutorial to learn about the differ..
This tutorial looks at the relationship between organisms. It also explores how energy is passed on in the food chain an..
