Q: Fact 1: Nephrons are the structural and functional units of the kidneys. Fact 2: When kidney function is normal, creatinine is removed from the body by the kidneys. Given the two facts above, what is required to remove creatinine from the body?

Select from the following. a). evaporation. b). adding heat. c). Dehydration. d). sleep. e). sweating. f). nephrons. g). glucose. h). hydration.
The answer is:
f).