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

What was the midwest states often called because they were located in the center of the nation

Flowchart with 6 boxes. box a sits at the very bottom of the left side of the flowchart, which flows into box b. box b flows into box c. box c flows into box d. on the bottom of the right side of the flowchart, box f flows into box e, and box e flows into box d. box d is the highest point in the flowchart. which of the following sections represent state-level courts? d, e, f b, e a, b, c a, f

What refers to the existence of more than one level of government in the country