The serving size must be what is customarily consumed. Foods meeting this criterion may use free of calories, no calories, calorie-free, zero calories, trivial source of calories, without calories, dietarily insignificant source of calories or negligible source of calories on the food label. Video of the Day
Body Symmetry of Phylum Chordata Although chordates come in many shapes and sizes, they share the four characteristics listed above and they also all have bilateral symmetry. If you divide a chordate in half, you will get two equal pieces that are mirror images of each other.
All cnidarians have radial symmetrical. There are two major body forms among the Cnidaria - the polyp and the medusa. Sea anemones and corals have the polyp form, while jellyfish are typical medusae. When you look at them, you can see that these body forms are the same except that one is upside down.