Hemichordates Show Relationships to Both the Echinoderms and the Chordates

Q3: On the inner end of each tube

Q35: Combinations of characteristics only found in the

Q36: It is generally accepted the ancestral deuterstome

Q37: Sea stars<br>A)live in brackish waters.<br>B)have bilateral symmetry.<br>C)use

Q38: The anus of asteroids is located on

Q39: The madreporite of asteroids leads directly the

Q40: When a sea star feeds on a

Q42: The regular urchins have become secondarily bilateral.

Q44: The ambulacral grooves of asteroids are closed.

Q75: The basic five arms of crinoids are