Question
What distinguishes the various types of echinoderms from each other, and what common features allow them to
be grouped together?
be grouped together?
Answers
Joe
Google "echinodermata" and check the wikipedia entry, the ucmpDOTberkeleyDOTedu entry and the animaldiversityDOTummz entry
Sections on "systematics' and "classification" will discuss common features of the various groups.