Match the following vocabulary words with the correct definitions.
1. Place where something is located.
amber
2. A mark that is made by pressure.
mineral
3. Fossilized sap of trees.
site
4. Element or chemical substance from the ground.
identify
5. Decide what something is by comparing.
preserved
6. Kept safe or protected.
imprint

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.