Evolution Quiz ChallengeOnline version Test your knowledge on evolution, fossils, and natural selection! by Emma Klein 1 What is a homologous structure? Give an example in humans. a A structure that is unique to one species. b A structure that is only found in fossils. c A structure that is the same in different species but may have a different function (ex. forearm). d A structure that has no function in any species. 2 What is a vestigial structure? Give an example in humans. a A structure that only exists in plants. b A structure that is essential for survival. c A structure that doesn't have a purposeful function anymore (ex. tailbone). d A structure that is found in all species. 3 What happens to organisms in a species when they are geographically isolated for a long time? a They will remain unchanged. b They will become extinct. c They will merge into a single species. d They will become reproductively isolated and may evolve into different species. 4 What is an adaptation? Give an example. a A trait that is harmful to survival. b A trait that helps an organism survive in its environment (ex. black moth in a black environment). c A trait that is only found in humans. d A random mutation with no effect. 5 What is the Theory of Evolution based on? a Random chance and luck. b Religious beliefs and myths. c Fixed traits and immutability. d Natural Selection and Genetic Inheritance. 6 Why do we find extinct fossils of the same species on different continents? a Species were created separately on each continent. b Species migrated by flying. c The continents were once joined together (Pangea). d Fossils were transported by humans. 7 What is speciation? a The random appearance of new species. b The merging of two species into one. c The process of one species becoming two different species over generations. d The extinction of all species. 8 What is natural selection? a When the environment selects traits that help a species survive. b A random process with no direction. c The elimination of all traits. d The selection of traits by humans only. 9 What is the level of classification of living things from broadest to most specific? a KINGDOM, PHYLUM, CLASS, ORDER, FAMILY, GENUS, species. b Kingdom, Class, Order, Family, Species, Genus, Phylum. c Phylum, Kingdom, Class, Family, Order, Genus, Species. d Species, Genus, Family, Order, Class, Phylum, Kingdom. 10 What is a cause of variation in plants or animals? a Mutation - random change in DNA. b Isolation - no genetic exchange. c Cloning - identical copies. d Uniformity - no changes in DNA.
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