Your Colleague Is Studying a Newly-Discovered Organism

Your colleague is studying a newly-discovered organism.She is becoming increasingly convinced that the organism is an arthropod.You find that you must respectfully disagree when you note that the organism has a set of distinctly non-arthropod characteristics.The features that cause you to exclude the organism from the arthropod grouping are

A) jointed legs,ecdysis,and an exoskeleton.
B) antennae,six legs,and mandibles.
C) compound eyes,book lungs,and a hemocoel.
D) Malpighian tubules,ommatidia,and tagmata.
E) pseudocoel,closed circulatory system,and ventral heart.