For human species to obviate extinction, reproductive mature adults should be producing viable offspring in order to con..
Proteins and minerals can be derived from various dietary sources. They are essential for the proper growth and developm..
A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal ..
Obtaining air outside an aquatic environment required species to acquire suitable adaptations, and this was the case of ..
This tutorial deals with the abiotic factors of the freshwater environment that determine what sort of life would be sui..
This tutorial describes the different types and causes of brain damage. Find out how genetics, physical injury, lack of ..