Kidneys - Organs in the frog s excretory or urogenital system that filter the blood and remove the wastes to make urine.
(Kidneys - Organs in the frog s excretory or urogenital system; filter; the blood) (Kidneys - Organs in the frog s excretory or urogenital system; remove; the wastes; to make urine)
Kidneys - Organs in the frog s excretory or urogenital system Kidneys - Organs in the frog s excretory or urogenital system
filter remove
the blood
the wastes to make urine