Which of the following occurs when blood volume and pressure become too high?
The renal tubules reabsorb more water.
The kidneys produce less urine.
ADH release is inhibited.
The renal tubules reabsorb more sodium.
The Correct Answer is C
A. The renal tubules reabsorb more water. If blood volume and pressure are too high, the body would aim to reduce them, not increase them further. Reabsorbing more water would increase blood volume.
B. The kidneys produce less urine. To lower blood volume and pressure, the kidneys would increase urine production, not decrease it.
C. ADH release is inhibited: ADH (antidiuretic hormone) promotes water reabsorption in the kidneys, leading to increased blood volume and pressure. When blood volume and pressure are too high, the body inhibits ADH release to promote water excretion and lower blood volume and pressure.
D. The renal tubules reabsorb more sodium. Reabsorbing more sodium would lead to water retention, increasing blood volume and pressure, which is the opposite of what the body needs when blood volume and pressure are already high.
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Correct Answer is A
Explanation
A. Monozygotic; dizygotic: Monozygotic twins are identical twins that result from the division of a single fertilized egg. Dizygotic twins, or fraternal twins, result from the fertilization of two separate eggs.
B. Dizygotic; monozygotic: This is the reverse of the correct order. Dizygotic twins come from two eggs, and monozygotic twins come from one egg.
C. Monozygotic; identical: Monozygotic twins are identical, but this choice does not mention dizygotic twins, which makes it incomplete.
D. Dizygotic; nonidentical: While dizygotic twins are nonidentical, this choice does not properly define the types of twins produced by a single egg (monozygotic).
Correct Answer is D
Explanation
A. Sodium, potassium, carbohydrates, lipids, and proteins: Sodium and potassium are micronutrients, not macronutrients.
B. Carbohydrates, lipids, proteins, and water: Carbohydrates, lipids, and proteins are macronutrients, but water is not classified as a macronutrient. This option is partially correct but includes water, which is not a macronutrient.
C. Nucleic acids, carbohydrates, lipids, and proteins: Nucleic acids are not classified as macronutrients; carbohydrates, lipids, and proteins are.
D. Carbohydrates, lipids, and proteins, but not water: Carbohydrates, lipids, and proteins are macronutrients, and excluding water is correct since water is not a macronutrient.