Your Colleague Is Studying a Newly-Discovered Organism

question 45

Multiple Choice

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.