31. Which of the following statements is incorrect?
(A) Nematoda is more closely related to Arthropods than to Mollusca.
(B) Nematoda and Mollusca are segmented.
(C) Arthropoda is the most species-rich animal phylum.
(D) Echinoderms and chordates are deuterostomes.
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統計: A(1), B(1), C(0), D(0), E(0) #3222908
統計: A(1), B(1), C(0), D(0), E(0) #3222908