Crosswords Solver

Answer: nephridia
Answer	Crossword Clue
nephridia	(in many invertebrate animals) A tubule open to the exterior that acts as an organ of excretion or osmoregulation. It typically has ciliated or flagellated cells and absorptive walls
nephridia	NEPHRIDIUM, in invertebrates and lower chordates, an organ serving the function of a kidney

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.

Answer: nephridia