The mechanism of regulation, generally between organism and its environment, of solutes and the gain and the loss of water is called________?
Correct answer: C. Osmoregualtion
- A. Homeostasis
- B. Hemostasis
- C. Osmoregualtion
- D. Thermoregulation
Explanation
Osmoregulation is the control of water balance and the concentration of dissolved salts in an organism relative to its environment. It maintains suitable water potential and ion concentration in body fluids. Students may choose homeostasis, but homeostasis is the broader maintenance of a stable internal environment, whereas osmoregulation specifically concerns water and solutes.
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About Kidney and Urinary System
The kidney and urinary system remove nitrogenous wastes, regulate water and ion balance, and help maintain blood pH through filtration, selective reabsorption and secretion. Questions cover nephron structure, ultrafiltration, the loop of Henle, collecting ducts, urine formation and the roles of ADH and aldosterone, while distinguishing excretion from egestion.
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