According to Recent Reclassification,the Chaetognatha Are Now Included in the Ecdysozoa

Q3: Sea cucumbers have an elongated body,and they

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

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

Q10: Sea stars have light sensitive organs,the _,at

Q11: Echinoderms have the ability to osmoregulate regardless

Q13: A complex chewing apparatus found in many

Q13: The fossil record indicates crinoids are more

Q29: The mouth of the brittle star is