The process of osmoregulation refers to:
Correct answer: B. The regulation of solute and water movement between an organism and its environment
- A. The filtration of blood to remove metabolic waste
- B. The regulation of solute and water movement between an organism and its environment
- C. The creation of an osmotic gradient in the kidney medulla
- D. The secretion of hormones that control blood plasma
Explanation
Osmoregulation is the control of water and solute balance so that the water potential of body fluids stays steady, whatever the organism drinks or loses. Filtering waste out of the blood is excretion, a related but separate process, and it is the closest distractor. The medullary gradient is one mechanism the kidney uses to achieve osmoregulation, not the definition of it.
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