Marine stickleback populations live and breed strictly in the ocean. Sea-run stickleback fish are. anadromous, meaning that they are born in fresh water, spend most of their lives in the ocean, and. return to fresh water to breed. Freshwater stickleback fish live entirely in fresh water.
Among patients with Crohn's disease, 4% will have an anal fissure as the first manifestation of their Crohn's disease, and half of all patients with Crohn's disease eventually will develop an anal ulceration that may look like a fissure.
There are three kinds of answers: ones that are mostly right, ones that are mostly wrong, and those that once were right but now are wrong. Brain fissures are convolutions in the structure of the brain that form valleys between folds.The valleys are called fissures or sulci (plural of sulcus), and lie between the raised folds called gyri (singular gyrus).he fissures of a human brain are deeper than the fissures of the sheep brain. Edit. Share to: 1  About Cracked Heels and How to Relieve Them Cracked heels can be painful and unattractive. 2  They can also leave your feet susceptible to bacterial and fungal infections.