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Author Question: A shared derived characteristic for members of the arthropod subgroup that inclu (Read 528 times)

Charlie

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on: Aug 5, 2013
A shared derived characteristic for members of the arthropod subgroup that includes spiders would be the presence of
A) chelicerae.
B) an open circulatory system.
C) an exoskeleton.
D) a cuticle.
E) a cephalothorax.


camila

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Reply #1 on: Aug 8, 2013
Answer has to be A, trust me!


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Charlie

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Reply #2 on: Oct 18, 2013
Wonderful, you were right, thank you so much.


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