Did you know that you can tell how hydrated your body is from the color of your urine? if your urine is dark yellow, you need to hydrate, regardless of how much or how little you have exercised.

Which of the following statements concerning cancer and mutations is correct? a: cancer can only occur with a mutation in a somatic cell. b: usually, multiple mutations are required in different genes to cause cancer. c: none of the other answer options is correct. d: cancer can only occur with a mutation in a germ cell. e: usually, a single mutation is all that is required to cause cancer.