excretory organ

同根派生

An excretory organ of certain invertebrates.
某些无脊椎动物的排泄器官
The excretory organ of a vertebrate embryo from which the kidney develops.
原肾脊椎动物胚胎的排泄器官，肾由此发展而来
A tubular excretory organ in many invertebrates, such as mollusks and earthworms.
肾管许多脊椎动物，比如软体动物和蚯蚓的管状排泄器官
In birds,reptiles,and mammals it replaces the mesonephros as the functional excretory organ and develops into the adult kidney.
在鸟类、爬行动物和哺乳动物中它代替中肾起排泄器官的作用，并最终发育成肾。
The development of the kidney, the major excretory organ after birth, consists of 3 stages: the pronephros, mesonephros and metanephros.
摘要肾脏是人体主要的排泄器官，它的发育经过原肾、中肾、后肾3个阶段。