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D_o_m D_o_m
wrote...
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6 years ago
The tube feet of sea stars are used primarily for
 
  a. excretion of excess water.
  b. locomotion.
  c. reproduction.
  d. circulation.
  e. sensation

Question 2

A water-vascular system that operates the tube
  feet is characteristic of the
 
  a. arthropods.
  b. annelids.
  c. chordates.
  d. mollusks.
  e. echinoderms
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Replies
wrote...
6 years ago
Answer to q. 1

B

Answer to q. 2

E
D_o_m Author
wrote...
6 years ago
Upwards Arrow Correct again
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