Quick Answer. Depending on the species, catfish can live from eight to 20 years though the Mekong giant catfish lives more than 60 years. Almost 3,000 species of catfish have been catalogued throughout the world, but it is thought that as many as 4,500 exist. The Mekong giant catfish is the largest species of catfish.
Collagen, a protein, supports and your body's tissues and, literally, keeps your body from falling apart. Collagen is the primary component of the body's connective tissue. About 80% of the dermis -- the part of your skin that's under the epidermis (outer layer) -- is collagen.Collagen gives your skin strength.ollagen and elastin are fibers that make up the supporting structure of the skin. Collagen gives skin its firmness while elastin keeps skin tight. Both of these fibers are plentiful in young skin and start to break down with natural aging and as a result of sun exposure.
Collagens and elastin are the main protein content in the connective tissues. The connective tissues are of various types like loose connective tissues, dense connective tissues, blood, bone and cartilage and each perform various important functions.ifferent cells collectively form a tissue and do many important activities in the body. The structures of these human body tissues are different from one another and each tissue is formed in different parts of the body. The Human body tissues are of different types and each tissue performs different tasks.