What role does skin play in the excretory system?
a. secretes excess water as sweat
b. protects against pathogens
c. absorbs water through osmosis
d. facilitates gas exchange

"Secretes excess water as sweat" is the one role among the following choices given in the question that the skin play in the excretory system. The correct option among all the options that are given in the question is the first option or option "A". I hope that the answer has actually come to your help.