Understanding Evolution

An arthropod checklist

That wasn't quite right. Remember, the arthropods are the ones that have every one of the arthropod characteristics. There are three arthropods among the choices. Select those three.

matrix of characteristics

Based on these data, check all of the following animals that are arthropods.
 scorpion  moth  onychophoran
 mouse  millipede  jelly

 

View this article online at:
http://evolution.berkeley.edu/evolibrary/article/arthropods_09

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