Mark has diabetes and needs to undergo dialysis twice a week. dialysis purifies the body by removing waste and excess water from the blood. which body system does dialysis perform a function for?

Excretory system (Kidney)

The scenario that leads to this question is not correct, however, the question in itself has an answer as stated above.

Explanation:

The kidney is an organ that removes waste and excess fluid in the blood and passes these wastes to the bladder.

If the kidney fails, dialysis is a treatment for kidney failure (not a diabetes treatment as stated in the question).

Dialysis is performed by using a machine to purify the blood.

you cant move and you feel like someones pushing you down onto your bed it can feel like you want to get up but you just can't it can be extremely scary