All of the following are coelomates except:____________?
Correct answer: D. Aschelminthes
- A. Deuterosomes
- B. Proterosomes
- C. Hemichordates
- D. Aschelminthes
Explanation
Aschelminthes, including roundworms, are pseudocoelomates because their body cavity is not completely lined by mesoderm. Deuterostomes, protostomes and hemichordates are treated as coelomate groups, so students may choose protostomes if they mistake the developmental grouping for a non-coelomate condition.
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