How might my views about the natural
world be influenced by
the results
of scientific
investigation?

Why does the skin of your finger shrink when you wash clothes for a long time?

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.

Both carbohydrates and fats are used as fuel in cells. true or false