A thing that is what makes up the excretory system.
matter vital omniscient external toads food always angry animals
A B C D E F G H
All internal organs are vital organs.
A thing that is internal and vital make up the excretory system.
A thing that is what makes up the excretory system. (A) matter (B) vital (C) omniscient (D) external (E) toads (F) food (G) always angry (H) animals