1. Scientists who study life through the fossil record are called .. a. paleontologists c. molecular biologists b. zoologists: d. geneticists 2. Which term describes structures similar in purpose but not inherited from common ancestors? a. homologous . b. analogous •c. vestigia. d. embryonic 3. Change in a population over a period of time is known as a. biogenesis •Ce evolution, b. extinction d. periodic catastrophe 4. What is the hip bone of a python an example of? a. biochemical structure b. fossil record c. homologous structure : di. vestigial structure 5. Which is not a reason for our fossil record being incomplete? a. soft bodies of some organisms c. production of fake fossils b. fossils being hard to find -el. erosion.. 6. During Darwin's visit to the Galapagos Islands, what did he observe about finches? a. Each different group of finches had its own niche, b. There were no differences between groups of finches. c. Different groups of finches had the same niche d. The species resulted from coevolution. 7. Which is not part of the theory of natural selection? a. Variation within populations :. c. populations grow exporentially. b. many die, few survive d. favorable variations 8. Whenever two populations try to occupy the same niche, a. they work together %. natural selection does not take place b. the gene pool shrinks d. competition arises 9. Selection against the most common variation is known as a. variable selection c. directional selection b. disruptive selection d. nonvariable selection 10. A population of organisms that can interbreed to produce fertile offspring is a(n) a, evolved population b. niche c. adaptive radiation d. species 11. When environmental conditions favor individuals at one extreme of the normal distribution, a. distribution of characteristics does not change b. there is no selection c. directional selection takes place d. stabilizing selection takes place