In sea stars,contraction of the __________ force water into the tube feet of the water vascular system.
A) ampullae
B) lateral canals
C) Polian vesicles
D) hemal rings
E) Tiedemann's bodies
Correct Answer:
Verified
Q1: The echinoderms and hemichordates are
A)asymmetrical.
B)diploblastic.
C)deuterostomes.
D)ecdysozoans.
E)lophotrochozoans.
Q3: Sea daisies have a thin membrane,the _,that
Q4: The _ serves as an inlet into
Q5: As deuterostomes,the echinoderms and hemichordates share all
Q6: The major secretory and absorptive structures of
Q7: The principal nitrogenous waste of sea stars
Q8: Regeneration of lost parts of a sea
Q9: _ function in cleaning the body surface
Q10: The _ are found on the oral
Q11: Modern adult echinoderms have a form of
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