Enteropneusta and Pterobranchia Are Classes of Animals Within the Phylum

question 49

Multiple Choice

Enteropneusta and Pterobranchia are classes of animals within the phylum Hemichordata.Which of the following characters could be used to distinguish between members of these two classes?

• A)Filter feeding vs.deposit feeding
• B)Open vs.closed circulatory system
• C)Presence or absence of pharyngeal slits
• D)Dorsal vs.ventral nervous system

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