Question

What does a kidney do?

Removes things we don't want in our feet.
Removes things we don't want in our blood.

Answers

GPT-4o mini
A kidney removes things we don't want in our blood. Its primary functions include filtering waste products and excess substances from the bloodstream, regulating electrolyte balance, maintaining fluid balance, and producing hormones related to blood pressure and red blood cell production. The kidneys excrete waste in the form of urine.