ð Ambulance. ð. An ambulance, used to transport patients between their home and the hospital. The Ambulance emoji was approved as part of Unicode 6.0 in 2010. This ð emoji has no sponsor.Help Emojipedia go ad-free by adopting this emoji.n ambulance, used to transport patients between their home and the hospital. The Ambulance emoji was approved as part of Unicode 6.0 in 2010. This ð emoji has no sponsor. Help Emojipedia go ad-free by adopting this emoji.
Intestinal bacteria also have a role in the synthesis of vitamins B and K and the metabolism of bile acids, other sterols and xenobiotics.The colonic microflora are also responsive to diet.ntestinal bacteria also have a role in the synthesis of vitamins B and K and the metabolism of bile acids, other sterols and xenobiotics.
Vitamins are organic compounds found in very small amounts in food and required for normal functioningâindeed, for survival. Humans are able to synthesize certain vitamins to some extent. For example, vitamin D is produced when the skin is exposed to sunlight; niacin can be synthesized from the amino acid tryptophan; and vitamin K and biotin are synthesized by bacteria living in the gut.