Collagen is the principal constituent of the fiber-network layer of our skin. More than a third of the body's protein is collagen, and it can account for an even higher percentage in particular parts of the body. Collagen makes up 70% of our skin tissue.
Sea lice are parasites of the Caligidae family of arthropods and are among the most notorious pests affecting cultured marine fish.They have a particularly large impact upon salmonid fish production.ea lice on a salmon. (Wikimedia Commons). Sea lice are parasites of the Caligidae family of arthropods and are among the most notorious pests affecting cultured marine fish. They have a particularly large impact upon salmonid fish production.
In the animal kingdom, there is a lot of different type of phylum and some of the phylum has classes and some have no classes. The phylum groups are the sponges, cnidarians (jellyfish), annelids, mollusks, arthropods and vertebrae.Cnidarian's classes are jellyfish (hydrozoam), and sea anatomies.hen you think of the word animal, the first thing that pops into your head are warm blooded animals. Most people do think that. Actually, the animal kingdom is divided into six phylums: sponges, cnidarians (jelly fish), annelids (worms), mollusks, arthropods, and vertebrates.