Question

what are the two major roles of excretory system?
produce metabolic waste
circulate fluid in the body
maintain osmotic balance
remove metabolic waste from blood
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Explanation:

The excretory system's key functions include eliminating metabolic wastes (e.g., urea, uric acid) from the blood and regulating osmotic balance (water and electrolyte levels) to maintain homeostasis. Producing waste is done by cells, not the excretory system; circulating fluid is the circulatory system's role.

Answer:

C. Maintain osmotic balance, D. Remove metabolic waste from blood