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help me! will REP. (1 Viewer)

amour

amour

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Do both marine and fresh water fish excrete ammonia?
Will rep, Thankyou
 
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iAmCurium96

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Marine = Conc. Urine (Urea) because they need to conserve the water in their body
Fresh= Dilute Urine, need to conserve salts
 
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chels777

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fish excrete ammonia across their gills urine mainly for salt/water balance
 
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