A lung cell maintains homeostasis. What is this an example of?.

Nephrons, the functional unit of kidneys, are responsible for formation of urine. the sentences describe situations that are the result of problems in the urine formation process. for the nephron shown below, match each situation to the step in the urine formation process where the problem lies.

Organize the following objects from lowest volume to highest volume

Explain how the concentration gradient affects the process of atp synthesis