There is a valve at the meeting point between each ureter and the bladder prevents the back flow of urine from the urinary bladder to the kidney
Answer:
One Idea was the appreciation that the age of the Earth was much greater than had hitherto for been imagined.
Most of the digested food is absorbed in the small intestine-- while the large intestine functions largely to reabsorb water.
Hope this helps!!
The cell membrane that helps to control what enters and leaves a cell is the outer boundary of the cytoplasm
