1 Doctorate Degree in Business Administration-A doctorate or PhD in Business Administration is the highest business degree that can be earned. 2  This option is best for students who are interested in teaching or pursuing field research. 3  A doctorate degree generally requires four to six years of study.
Listen. Unlike cats and dogs, whose whiskers are made of hair, catfish have special whisker-like feelers made of skin. These sensitive feelers are called â barbels .. Each barbel is loaded with tiny taste buds and special olfactory sensors to help the fish smell.arbels help the fish search out food using their senses of touch and taste. Though it may seem obvious how the catfish got its name, these barbel whiskers are not the only reason. When caught, catfish make a noise that sounds a bit like a cat purring.
But the whisker's primary use is to help a cat judge whether or not he'll fit through an opening. A cat's whiskers are roughly as wide as his body -- sort of a natural ruler. The whisker tips are sensitive to pressure. You'll probably see a cat stick his head in and out of an opening before he puts his body in.