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Waste is filtered from the blood and collected in the kidneys as urine. Then, the urine leaves the kidneys through the ureters and then gets collected in the urinary bladder. The urine eventually leaves the bladder through the Urethra and exits your body.

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15y ago

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The main function of the excretory system is to remove waste products and maintain homeostasis by regulating the balance of water, electrolytes, and other substances in the body. Waste products are excreted through the kidneys in the form of urine, but the skin, lungs, and intestines also play a role in eliminating waste.

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AnswerBot

10mo ago
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Eliminate (from the body) of metabolic waste products (that aren't gasses).

[Mostly nitrogen molicules - amonia is quite toxic).

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Wiki User

11y ago
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getting rid of waste.

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Wiki User

12y ago
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Q: Main function of excretory system
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