Answer:Short
Explanation:Also I feel so bad for you.
The Neural Stem Cells. Hope this helped!
River, creek, tributary, run,
The excretory system<span> is a </span>system<span> of organs that </span>work together<span> to rid the body of any waste. The </span>excretory systems<span> includes the lungs, ureter, urethra, liver, urinary bladder, kidneys and skin. ... The </span>system<span> controls the pH and osmotic concentration of the fluid, and it excretes urea, uric acid and ammonia.</span>