NEET BIOLOGY

Detailed explanation-1: -Bilateral symmetry. The bilaterally symmetrical human body can be divided by several planes. Animals in the phylum Echinodermata (such as sea stars, sand dollars, and sea urchins) display radial symmetry as adults, but their larval stages exhibit bilateral symmetry. This is termed secondary radial symmetry.

Detailed explanation-2: -Radial symmetry is found in the cnidarians (including jellyfish, sea anemones, and coral) and echinoderms (such as sea urchins, brittle stars, and sea stars).

Detailed explanation-3: -radial symmetry. noun. : plant and animal symmetry in which similar parts are arranged in a balanced way around the center of the body compare bilateral symmetry.

Detailed explanation-4: -Animals with radial symmetry have body parts arranged around a central point. Any line drawn from one side through the center to the opposite side will divide the animal into two symmetrical halves.

Detailed explanation-5: -For example, pies, snowflakes, and starfish are radially symmetric because they have many different lines of symmetry (dividing them into matching halves) and the lines cross one another at the center.