Roundworms have all of the following characteristics except:
Correct answer: E. Notochord
- A. Pseudocoelom
- B. Bilateral symmetry
- C. Mesoderm germ layer
- D. Ectoderm germ layer
- E. Notochord
Explanation
Only members of the phylum Chordata have notochords. Roundworms are in the phylum Nematoda.
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