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Evolution Practice Test

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  1. EvolutionPractice Test

  2. 1. Why don’t hybrids make a new species? • They don’t live in the same area. • They don’t eat the same foods. • They don’t have a common ancestor. • They can’t reproduce.

  3. 2. To become a new species, a population must first ___. • be geographically isolated • join another population • adapt • increase its population

  4. 3. Evolution acts upon phenotype because ___. • genes are passed down • traits determines survival & reproduction • genes determine who reproduces • traits don’t get passed down

  5. 4. Which evolutionary mechanisms will MOST likely lead to extinction? • analogous structures • gene flow • genetic drift • natural selection

  6. 5. Which evolutionary mechanisms will LEAST likely lead to extinction? • analogous structures • gene flow • genetic drift • natural selection

  7. 6. Which of these is NOT evidence to show common ancestry? • analogous structures • similar DNA sequences • similar embryo development • homologous structures

  8. 7. The fossil record tells us periods of ___ and ___. • gene flow; natural selection • hybridization; speciation • gene flow; genetic drift • extinction; speciation

  9. 8. What evidence do we have to show that organisms evolved over time? • Half lives • Fossils • Gene pools • Adaptations

  10. 9. You want to find out the exact age of a fossil. Which of these would you use? • Absolute dating • Carbon dating • Radiometric dating • All of these

  11. 10. When a giant meteor hit the earth about 65.5 mya, land reptiles died because they starved but marine reptiles survived because they ate food underwater. • Gene flow • Genetic drift • Natural selection • none of these

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