How do single celled organisms, like paramecium, adapt to living in a hypotonic environment?

Which of the following is not a product of the second stage of glycosis

Long-period comets come from the oort cloud particles in earth’s atmosphere material from the asteroid belt the kuiper belt

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