Sea Stars Have Light Sensitive Organs,the _____________,At the Ends of Their

Q5: Of the two classes of Hemichordata,a crown

Q6: Class Asteroidea<br>A)have pentaradial symmetry.<br>B)feeds on clams.<br>C)feeds on

Q7: The function of the papulae in the

Q8: According to recent reclassification,the Chaetognatha are now

Q9: Acornworms<br>A)are usually found in deep water zones.<br>B)do

Q11: Echinoderms have the ability to osmoregulate regardless

Q13: The fossil record indicates crinoids are more

Q14: A unique characteristic of echinoderms is<br>A)the endoskeleton

Q29: The mouth of the brittle star is

Q85: The ancestor of the echinoderms had _