protochordates
基本解釋
- 原睡物類
英漢例句
- These characteristics are shared by brachiopods and pterobranchs (a hemichordate group) as well as by echinoderms, protochordates, amphioxus, and vertebrates.
脊索動(dòng)物的祖先可能類似尾索動(dòng)物的幼體，后向兩個(gè)方向發(fā)展，一是經(jīng)過(guò)變態(tài)，成體為固著生活，具鰓裂作為取食和呼吸器官；