Biology The Essentials
Quiz 28: The Digestive and Urinary Systems
Like the Kidney,a Dialysis Machine Filters All but What Out
Like the kidney,a dialysis machine filters all but what out of the blood? A) water B) waste C) blood cells D) salt E) glucose
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Ammonia is toxic and must be secreted as a dilute solution.Why do most freshwater fish secrete ammonia,but mammals do not? A) Freshwater fish do not have enough energy to convert ammonia to urea. B) Mammals do not break proteins down forming ammonia. C) Mammals do not secrete wastes in solution. D) Freshwater fish can release ammonia without becoming dehydrated by drinking water. E) Mammals can synthesize urea from ammonia without using energy.
Kidney stones are calcium-rich crystals that form inside the kidney.What symptoms would you expect if the stones lodge in a ureter? A) increased urine output B) decreased urine pH C) increased urine pH D) decreased urine output E) decreased urine osmolarity
Kidney stones are calcium-rich crystals that form inside the kidney and can be triggered by dehydration because salt concentrations A) increase as blood volume increases. B) drop as blood volume drops. C) increase as blood volume drops. D) drop as blood volume increases. E) No answer is correct.
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