Bioidentical hormone therapy is often called natural hormone therapy because bioidentical hormones act in the body just like the hormones we produce.But here again, that tricky word natural muddies the waters.ioidentical hormone therapy is often called natural hormone therapy because bioidentical hormones act in the body just like the hormones we produce.
Some bivalves, which are mollusks, have bilateral symmetry. Radial symmetry is typical of starfish, urchins, and sea anemones, which are echinoderms.
The basic body symmetry of a cnidarian, especially a jellyfish, is radial, meaning that no matter how it is bisected along its central axis, its two halves will be mirror images of one another.