14 Select the correct answer.
Frank is a forensic photographer. Why is Frank's job important for crime scene investigation?
OA.
Photographs can detect a suspect's guilt.
OB. Photographs can be used to select a jury.
OC. Photographs depict the details and comparative information of a crime.
OD. Photographs are used as an alternative to crime scene sketches.
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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.