11. Urea is also used in a small way, but significantly, in osmoregulation . 12. This may have a function in osmoregulation . 13. This is an adaptation that enhances osmoregulation . 14. In mammals, the kidneys and urinary bladder are the primary organs used in osmoregulation . 15. Osmoregulation is the active process by which an organism maintains its level of water content.16. Acidocalcisomes have been implied in osmoregulation . 17. All of these are thought to be chemoreceptors, and the cerebral organs may also aiding osmoregulation . 18. Another important equation to assist in determination of values having to do with osmoregulation is Heff s equation. 19. Sharks have adopted a different, efficient mechanism to conserve water, i . e ., osmoregulation . 20. The gland can be thermoregulatory lipids, a source of pheromones, a site of osmoregulation , et al.