quote:
Though adult echinoderms are radially symmetric, echinoderm larvae are bilaterally symmetric -- and resemble the larvae of indirect-developing hemichordates.
Hey! You know how science works? We make a prediction and see if it is observed. My prediction: molecular biology should confirm the observation of morphology in showing that echinodermata is related to hemichordates.
We have a
winner!
Check it out.