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.
The term phylum is one of seven major categories that are used to classify organisms. In order of broad to specific. These seven categories are: Kingdom (broadest), Phylum, Class, Order, Family, Genus, and Species (most specific).This system of classification was developed in the 18th century by Carolus Linnaeus. phylum can be defined in two ways: as a group of organisms with a certain degree of structural or developmental similarity or a group of organisms with a certain degree of evolutionary relatedness. For plants Phylum is equivalent to the botanical term Division.