Fake urine poses law enforcement challenge. People trying to pass off another person's urine has long been an issue for Tippecanoe County, Ind., courts. In recent years, testers are seeing more synthetic urine kits. The (Lafayette, Ind.) Journal & Courier.
Quick Answer. The bathroom of a maritime vessel is known as the head because of its location aboard vessels in the bow or fore of the ship, as explained by the Naval Heritage and History Command. The term first appears in 1708 in Woodes Rogers' book, A Cruising Voyage Around the World.. Continue Reading.
The operculum is a bony structure covering and protecting the gills in teleosts; it plays an important part in the breathing mechanism. Elasmobranchs do not have an operculum but there are separate gill slits for each gill.The lateral line is a jelly-filled tube or canal just below the skin.ll fish are aquatic and breathe by absorbing dissolved oxygen in the water using their gills. The bodies of both teleosts and elasmobranchs are covered with scales but those of elasmobranchs are spiky and project through the skin.