Biology · Homeostasis

The average weight of a human kidney is approximately 150 grams. This value can vary slightly depending on individual factors such as age, sex, and overall health. The other options are inaccurate as they either underestimate or overestimate the average weight of a kidney. For instance, 140 grams is a bit on the lower side, while 160 grams exceeds the common weight range, and 130 grams is also under the average weight. Thus, option D is the most accurate representation of kidney weight in humans.

This weight is slightly lower than average. While kidneys can vary in size, this estimate does not reflect the typical weight.

This weight is above the average range for a typical human kidney, making it an inaccurate choice.

This weight is just below the average for human kidneys, which generally weigh around 150 grams, making this option incorrect.

This is the average estimate for the weight of an adult human kidney, making this the correct answer.