Taurine, or 2-aminoethanesulfonic acid, is a compound that is
produced naturally in the human body. Found in high levels in the skeletal and
heart muscles, & white blood cells & central nervous system. It's
essential component in bile & aids in digestion of fats and the absorption
of vitamins that are fat-soluble. 2-aminoethanesulfonic acid is also found in
seaweed, fungi and bacteria<span> -compound in bile that allow
fats & oils to be absorbed- essential development central nervous
system & retina</span>.
If I remember that abiotic means not living then rocks, soil, air.