Uniramia

Uniramia (uni - one, ramus - branch, i.e. single-branches) is a group within the arthropods. In the past this group included the Onychophora, which are now considered a separate category. The group is currently used in a narrower sense. Uniramia is one of three subphyla in Arthropoda classification suggested by Sidnie Manton. This classification d...
Found on http://en.wikipedia.org/wiki/Uniramia

Uniramia

(from the article `arthropod`) ...gas exchange organs are gills; mostly marine, but many freshwater species; some isopods terrestrial; 44,000 described species in up to 10 ... Uniramia is the largest of the arthropod subphyla. It contains not only the class Insecta but also four closely related classes of long-bodied ... [2 related a...
Found on http://www.britannica.com/eb/a-z/u/9
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