Mary is worried because dementia is common in her family. she does not want to get that disease. what can she do to decrease the risk

True or false mucous membranes destroy pathogens on the outer body surface, at body openings.

We can be sure that a mole of table sugar and a mole of vitamin c are equal in their

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.