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Science Homework Help. Stamford Molecular Evidence Taxonomists to Bilaterally Symmetrical Animals Discussion

 

I’m trying to study for my Science course and I need some help to understand this question.

Molecular evidence has led taxonomists to group bilaterally symmetrical animals in one of three clades: Deuterostomia, Lophototrochozoa, or Ecdysozoa. Give one distinguishing characteristic of these groups other than molecular differences. 

 

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