Leg Pain Symptoms & Signs. Related. Symptoms & Signs. Pain in the legs can occur as a result of conditions that affect bones, joints, muscles, tendons, ligaments, blood vessels, nerves, or skin. Leg pain can occur in the foot, ankle, knee, behind the knee, thigh, down the back of the leg, or in any part of the leg.
Taxonomy is the science of classifying and defining all organisms. This comes from Ancient Greek taxis (meaning arrangement) and nomia (meaning method). The way taxonomy goes is: domain #-># kingdom #-># phylum #-># class #-># order #-># family #-># genus #-># species.
This is part of Scientific Taxonomy. Classification is the arrangement of different related organism groups put into different groups. The classification system starts with a group with a wide variety of organisms and becoming more selective as the groups get more specific. Carl Linnaeus classified organism by shared characteristics.