Question

Define the following term by giving examples.

Radial symmetry

Answer 1

Radial symmetry:

1. Animals that have radial symmetry have multiple lines of symmetry.
2. Due to the circular arrangement of their parts, radially symmetrical animals don’t have unique front or back ends.
3. Such animals may have distinct bottom & top sides.
4. The cnidarians (including jellyfish, sea anemones, and coral) and echinoderms (such as sea urchins, brittle stars, and sea stars) are radially symmetric.