The kidneys are part of the excretory system that eliminates wastes in order to maintain homeostasis. Which substance is a waste product eliminated by the excretory system? A. urine
B. sugar
C. plasma
D. oxygen

A

Explanation:

answer; /// i believe the correct answer is (wine) ; /// good luck

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.