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.
What are cockroaches? There are 19 species of cockroaches found in Hawaii; 3 of which are commonly associated with humans and are considered pests. The three main species in Hawaii are the American, German and Surinam or burrowing cockroach. The American cockroach is the largest of the common roaches and is reddish-brown in color.