Which two elements make up the most common compound in the human body ?

List charasteristics of athenosphere

Match the enzymes to their role in the dna replication process

There are few cells in the body that do not undergo mitosis: most somatic cells divide regularly, some more than others. take for example the cells that line the digestive tract. these cells must be frequently replaced because they are constantly eroded by the movement of food through the tract. what mechanism(s) is/are in place to ensure that these cells are exact copies of the mother cell