acraniate
基础科学

        Any chordate animal with a noto-chord and lacking a brain and skull. Acrani-ates include the urochordates and cephalochor-dates. See Cephalochordata,Urochordata.指任何脊索动物中具有脊索而缺乏大脑和头骨的动物。无头骨类包括尾索动物和头索动物。参阅142页 Cephalo......（本文共 220 字）     [阅读本文] >>