問題詳情
30.tWhich of the following statements is incorrect?
(A)tMany radial animals are sessile (living attached to a substrate) or planktonic (drifting or weakly swimming).
(B)t Bilateral animals typically move actively from place to place.t.
(C)tMost animal phyla are bilateral symmetry and have two germ layers.
(D)tSponges are basal animals that lack true tissues.
參考答案
答案：C
統計：A:0,B:1,C:0,D:0,E:0
難度：計算中