A fish in fresh water:
Correct answer: D. (A) and (B)
- A. Produces dilute urine
- B. Have a hypertonic body
- C. Produces concentrated urine
- D. (A) and (B)
Explanation
The animals whose body fluid concentrations differ noticeably to the outside environment actively regulate to discharge excess water in hypotonic and excrete salts in hypertonic conditions, therefore, are called as osmoregulators. Animals inhabiting diferent environments have distinct adaptations to regulate osmotic balance, e.g., marine, fresh water and terrestrial environments.
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About Homeostasis
Homeostasis maintains a stable internal environment through the kidney and urinary system, thermoregulation and excretion. The kidney topics include filtration, selective reabsorption, urine formation and water balance, while thermoregulation involves sweating, vasodilation, vasoconstriction and hormonal control; excretion is different from egestion, which removes undigested food.
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