Answers

2016-03-11T20:46:39+08:00
-The Arachnid class is an example of an arthropod group characterized by possessing two main body segments, eight legs, but having no antennae. 

-All arthropods except chelicerates and proturans have antennae. (The chelicerates include arachnids, horseshoe crabs, and sea spiders.)
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