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Unformatted text preview: A. Only skulls B. Structures that look extremely different from any other animal C. Structures that have a similar makeup in different animals D. None of the above 7. How is DNA used in evolutionary studies? A. Comparison of DNA base sequences and amino acid sequences of the same proteins from different animals B. Comparison of RNA sequences from the same species of animals C. Looking at how the animal develops as a young adult D. None of the above 8. Which insect was the basis for DNA studies? A. Beetles B. The cockroach C. Spiders D. The fruit fly 9. According to scientists studying fruit fly embryos, what caused the embryo to develop? A. Magic B. Carbohydrates C. Fats D. Genes 10. According to the video, why do all animals resemble each other? A. They all have the same selective pressures B. Mutations C. They had a big meeting and all are working from the same notes D. They all use the same set of genes inherited from an an-cient ancestor...
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