Cnidaria A phylum that comprises the sea anemones, jellyfish, and corals, and which is known from the late Precambrian. Cnidarians are basically radially symmetrical and have tentacles.The body contains a gastrovascular cavity and the body wall is diploblastic.Cnidarians occur as two distinct types: polyps and medusae, which in many taxa constitute alternating generations. All are aquatic and most are marine.wo body forms and two lifestyles are characteristic of the Cnidaria (see polyp and medusa). The sessile hydroid, or polyp, form is more or less cylindrical, attached to its substratum at its aboral (opposite the mouth) end, with the mouth and surrounding tentacles at the upper, oral, free end.
5 Rules for Regularity. 1  Listen to your body. When you feel a bowel movement coming on, go to the bathroom as soon as you can. 2  Get your fill of fiber. Increase the amount of dietary fiber in your meals by adding whole-grain breads and cereals, raw vegetables, and fruit. 3  Stay hydrated. Don't let yourself get thirsty.  Don't skip meals.
When you suffer from constipation, you certainly are motivated to eat foods that will get your system moving. In the coming slides, you will find the best foods for jump-starting your system. 1. Increase fiber slowly! The best thing you can do to ease constipation is to slowly increase your intake of dietary fiber.