Describe the function and components of the mucosal barrier of the stomach. Protects the stomach from autodigestion Components Thick coating of bicarbonate-rich mucus Tight junctions of the epithelial cells Plasma membrane of gastric glands are impermeable to HCl.
World Range & Habitat. Sea lampreys, Petromyzon marinus, are found only in the Mediterranean and North Atlantic, in the coastal seas off the North East USA, Nova Scotia, southern Greenland, the UK, Ireland and Scandinavia. They are also found in the Great Lakes and enters inland freshwater rivers and streams to breed.
In the Alaskan town of Fairbanks, weird-looking, eel-like fish are falling out of the sky. Previous Next. In Alaska, it's raining vile-looking eels. Arctic lampreys have dropped out of the blue four times this week in Fairbanks, including in the parking lot of a thrift shop. The foot-long, eel-like fish has an impressive set of teeth, but no jaw. The Alaska Department of Fish and Game says there is no danger from the downright ugly fish that is native to the state, according to the Daily News-Miner. Normally, they live in the mud of rivers.