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Zoeyismycat Zoeyismycat
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6 years ago
Planktonic organisms often have needle-like structures that ________.
 
  A) are used as a defense mechanism
  B) are used as paddles to catch ocean currents
  C) increase density
  D) prevent sinking
  E) serve as a skeleton to support the diatom
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skalassskalass
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6 years ago
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6 years ago
Thank you, thank you, thank you!
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