Describe the symmetry in members of phylum echinodermata?

Bilateral Symmetry

Explanation:

Echinoderms evolved from bilateral symmetric species.

Even though adult echinoderms have five-sided or pentaradial symmetry, echinoderm larvae are ciliated, free-swimming species that form in bilateral symmetry making them look like embryonic chordats. Example of echinodermata is starfish.

Bilateal symmetry allows them to move anywhere in the water. That when a predator is trapped by 2 arms, the other arms can be used effectively by continuously placing pressure on the body part to pressurerise the animal to open.

Hence, phylum echinodermata have bilateral symmetry.

the answer is a) cell division.

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