Biological pigment of the tetrapyrroles is their connection in the biological oxidation process. Tetrapyrroles have a major role in electron transport and act as a replacement for many enzymes. They also have a role in the pigmentation of the marine organism's tissues. Melanin is a class of compounds that serves as a pigment with different structures responsible for dark, tan, yellowish / reddish pigments in marine animals. It is produced as the amino acid tyrosine is converted into melanin, which is found in the skin, hair, and eyes. Derived from aerobic oxidation of phenols, they are polymers. There are several different types
Beauty Is Only Skin Deep Skin Deep" was an R&B number-one hit, the Temptations' fifth, and reached number-three on the "Billboard" Pop Singles Chart. It was also a hit in the United Kingdom, making it to #18 on the UK Singles Chart in late 1966. The song never appeared on a regular Temptations studio LP, but was featured on the group's first "Greatest Hits" album. See "The Temptations" perform "Beauty Is Only Skin Deep" at this link Beauty Is Only Skin Deep "Beauty Is Only Skin Deep" is a 1964 song, that became a 1966 hit single recorded by The Temptations for the Gordy (Motown)