Friday -Jan. 172025 Quiz questions reviewing Evolution and Natural Selection. Answer all questions in COMPLETE SENTENCES. Use all notes and your vocabulary sheet. 1. What is evolution? 2. What are the 2 main parts of evolution and natural selection? 3. List and describe the 5 Fingers of Evolution. 4.What is a gene pool? 5. What is an adaptation? 6. What are homologous structures? 7. Give an example of a homologous structures. B. What are analogous structures? 9. Define and give an example of vestigial structures. 10. How close is DNA from a monkey compared to human DNA? 11. Define natural selection. 12. Give 2 examples of showing how an adaptation will prolong an organism's survival. MUST BEANSWERED IN COMPLETE SENTENCES!

1. Evolution is the process by which species of organisms arise from earlier life forms and undergo change over time through natural selection.<br />2. The two main parts of evolution and natural selection are genetic variation and environmental selection.<br />3. The 5 Fingers of Evolution are: mutation, gene flow, genetic drift, natural selection, and sexual selection.<br />4. A gene pool is the total genetic diversity found within a population or species.<br />5. An adaptation is a physical or behavioral characteristic that has evolved over time to help an organism survive and reproduce in its environment.<br />6. Homologous structures are body parts that share a common ancestry and have a similar structure, even if they perform different functions.<br />7. An example of homologous structures is the human arm and the bat wing.<br />8. Analogous structures are body parts that perform a similar function but do not share a common ancestry and do not have a similar structure.<br />9. Vestigial structures are body parts that have lost their original function through evolution. An example is the human appendix.<br />10. DNA from a monkey is about 95% similar to human DNA.<br />11. Natural selection is the process by which certain traits become more or less common in a population due to their effect on the survival and reproduction of individuals.<br />12. Two examples of how an adaptation will prolong an organism's survival are: a polar bear's thick fur and fat to keep it warm in the Arctic, and a cactus's ability to store water to survive in the desert.