A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal ..
A balanced diet is essential to a healthy organism. Insufficiency or too much of a particular element or compound, such ..
The evolution of the species of the genus "Homo" led to the emergence of modern humans. Find out more about human evolut..
Muscle cells are specialized to generate force and movement. Learn about the different types of muscle tissues in this t..
The blood sugar level is regulated by two hormones. The mechanism behind this type of negative feedback control is descr..
This tutorial describes the different types and causes of brain damage. Find out how genetics, physical injury, lack of ..
