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.
An international collaboration of scientists has announced the discovery of a new species of lizard from remote, war-torn mountains in Central Africa. The new species, known as Cordylus marunguensis, was found in the Marungu Plateau, a montane area west of Lake Tanganyika in southeastern Democratic Republic of the Congo.