Share. By Jennifer Kennedy. Definition: Radial symmetry is the regular arrangement of body parts around a central axis. When an organism is radially symmetrical, you could cut from one side of the organism through the center, to the other side, anywhere on the organism, and this cut would produce two equal halves.Examples: Sea urchins have radial symmetry.hen an organism is radially symmetrical, you could cut from one side of the organism through the center, to the other side, anywhere on the organism, and this cut would produce two equal halves.
Stevia is probably better for you than Xylitol because Xylitol is still a sugar and contains calories. If youâre going to use a sweetener, I advise you to only choose Stevia, Xylitol, and Lakanto. Other than that, Iâd forgot all the other zero calorie natural and artificial sweeteners.tevia and Xylitol are much better than most sugars, but maybe not the choice to make if you want to break free from a sugar addiction. Like me, if you canât live without some sweetness in your life, you have options. Letâs examine the three best natural sweeteners and recommended brands for each type of sweetener.
(Sweet Leaf-Honey Leaf). Stevia is a remarkable plant that is used in many parts of the world as a natural herbal sweetener. In Japan, for example, about 40% of the sweetener market is stevia-based. Stevia leaves are 30 times sweeter than sugar but contain virtually no calories.