Some arthropods have special excretory structures, and an arthropod is a member of the Phylum Arthropoda. Given these facts, what creatures have special excretory structures. among the following options:
- warm-blooded
 - fur seals
 - phylum Cnidaria
 - phylum arthropoda
 - barnacles
 - Phylum Chordata
 - Phylum Mollusca
 - Most plants


 

    phylum arthropoda     