Adult echinoderms have radial symmetry.
All echinoderms are deuterostomes .
Deuterostomes have radial symmetry.
what have radial symmetry?
[a] deuterostomes
[b] Veins and arteries.
[c] barnacles
[d] alpacas
[e] solid, liquid, gas
[f] sensory neurons
[g] gastropod shells
[h] graptolites