Final answer:
Cnidarians, such as jellyfish and anemones, possess radial symmetry, enabling them to interact with their surroundings uniformly from all directions.
Step-by-step explanation:
Cnidarians exhibit a form of symmetry known as radial symmetry, where the arrangement of their body parts is centered around a main axis.
This is apparent in animals like jellyfish and anemones, which are part of the phylum Cnidaria. With radial symmetry, if these animals are divided in any direction along their oral/aboral axis, which is the vertical axis from the mouth to the opposite side, the resulting halves are mirror images of each other. This symmetry is suited to their lifestyle, often sedentary or floating, allowing them to interact with their environment from all directions.