In a turbite bed sediments is deposited chronologically.
Answer:
deoxyribonucleic acid and ribonucleic acid
The human digestive system can fail if you eat something harmful, and it can break down nutrients, techinically the digestive system can stop working if you get something like Gastoparesis, which stops the movement of food through the digestive system.
Not sure about the answer but I think its the size of the system
