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Title: Planktonic organisms often have needle-like structures that: Post by: Yoshi on Sep 26, 2014 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. Title: Re: Planktonic organisms often have needle-like structures that: Post by: GeoExp on Oct 8, 2014 Content hidden
Title: Re: Planktonic organisms often have needle-like structures that: Post by: Yoshi on Oct 12, 2014 Thank you :-]
Title: Re: Planktonic organisms often have needle-like structures that: Post by: GeoExp on Oct 13, 2014 A pleasure to help. Good luck ;D
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