A bag like organ that holds urine is the bladder.
Urine bag
Her bag look like a new bag but it's a very old bag it has words that say boy and it's a sling bag
The same as anyone Else's urine
Rat urine looks like what anyone would expect urine to look like. It is a liquid, that can range in color or smell. The colors and smells are dependent on the rats diet.
a brown bag
Burlap does not look like a paper bag. A paper bag is smooth, burlap is not. I don't know the correct answer to this, but I know burlap is not correct.
Launder the bag with a product like Oxyclean. There are also several urine-removal products for sale in the grocery store - look in the pet food aisle, usually located near the dog shampoos.
A bag full of air.
Special protection mus be used when handling urine, like gloves, double bagging a urine specimen. Bagging in red bag any sheets, blankets, clothing with urine on it, usually in double bags. Wear masks when handling urine. Is this what you are talking about?
The bladder.
The Bladder