Match Each Definition in the First Column to the Correct

Match each definition in the first column to the correct term in the second column.
-The organ system that maintains a constant internal environment through the excretion of nitrogenous wastes.

A) Nervous
B) Endocrine
C) Muscular
D) Skeletal
E) Integumentary
F) Lymphatic
G) Respiratory
H) Cardiovascular
I) Urinary
J) Reproductive
K) Digestive