Arthropods are a highly diverse, successful, and fairly complex group of invertebrates. Which of the following evolutionary trends is associated with the arthropods?

0 votes
    an absence of tissues
    cephalization
    a gastrovascular cavity
    a pseudocoelom

asked May 30, 2013 in Biology by anonymous
    

1 Answer

0 votes
cephalization
answered May 31, 2013 by Bioshare ~Top Expert~ (34,070 points)



...