Rapid hiv tests are now available and produce results in 20 to 60 minutes.
a. true
b. false

What causes spoilage of food through infestation and contamination, and reduces its nutritional value? a. bacteria b. enzymes c. insects d. mold e. yeast

How many calories are in one pound of fat

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.