Some members of this phylum use the caridoid escape reaction. Major segment of this phylum's body plan are known as tagma. A major subphylum of this phylum is distinguished by the presence of appendages located before the mouth called chelicerae. The telson and uropods form the tail fan of some members of this phylum. Like Mollusca, members of this phylum have an open circulatory system. Many members of this phylum have an (*) exoskeleton made of
Some members of this phylum use the caridoid escape reaction. Major segment of this phylum's body plan are known as tagma. A major subphylum of this phylum is distinguished by the presence of appendages located before the mouth called chelicerae. The telson and uropods form the tail fan of some members of this phylum. Like Mollusca, members of this phylum have an open circulatory system. Many members of this phylum have an (*) exoskeleton made of chitin. For 10 points, name this largest extant phylum that includes insects and crustaceans.
Some members of this phylum use the caridoid escape reaction.
{Arthropoda} [or {arthropod}s]