Which of the following is an example of parasitism? a. clownfish defending sea anemone from other predators b. hookworms consuming blood from inside an animal's intestine c. barnacles living harmlessly on the side of a whale while collecting food d. tree frogs using the trees to hide from predators

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