Answered

kidneys couldn't work without the ___because ___ couldn't leave the body



Answer :

First blank is liver and second blank is water.

Answer:

Kidneys couldn't work without the urinary tract because waste couldn't leave the body.

Explanation:

Kidneys have an important function: to filter out waste or toxins. Each kidney is attached to a ureter, which is tube that propel urine from the kidney to the urinary bladder. That's why the statement should be this way: ''Kidneys couldn't work without the urinary tract because waste couldn't leave the body''.