protonephridia

protonephridia

美 　英

• 网络原肾管

例句

Protonephridia are present in many flatworms and are involved in osmoregulation. A primitive brain and nerve cords are present.

原肾管存在于许多扁形动物，并涉及渗透调节。原始的大脑和神经索存在。