“cephalochordate”的概念、定义、翻译、参考文献-科学参考

单词	cephalochordate
释义	cephalochordate Encyclopedia 理学头索动物释 cephalochordate 头索动物现存最原始的脊索动物，位于脊索动物系统树基部。头索动物无真正的头，习惯也称无头类，脊索纵贯全身，向前一直延伸到身体背神经管的前方，这在所有脊索动物是仅有的现象，故而被称为头索动物。 Biology cephalochordate头索动物
随便看	fish sexual dimorphism fish-shaped tallies of the Tang Dynasty fish-shaped woodblock fish shoal detection fish/shrimp separating device fish skin costume of Hezhen nationality fish skinning machine fish slicing machine fish spawning ground fish spawning migration fish spawning patterns fish spawning stock biomass fish spleen fish stem cell fish surplus production fish swimming speed fishtail page-setter fishtail palm fish taxis fish thigmotaxis fish thymus fish transportation system fishwasher fishway fishy odour in egg

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