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.
Foods that help your bowels move: 1. Leafy Greens: Spinach, Swiss Chard & Kale. Loaded with a rainbow of phytonutrients, just one cup of these leafy greens gives you a good amount of dietary fiber and magnesium. What's more, they're full of water when eaten fresh.
Soluble fibre. Soluble fibre can be digested by your body. It may help to reduce the amount of cholesterol in your blood. If you have constipation, gradually increasing sources of soluble fibre â such as fruit and vegetables, oats and golden linseeds â can help soften your stools and make them easier to pass. Foods that contain soluble fibre include: 1  oats, barley and rye.