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Class: Name: ^hapter Date: 7 Sections I & 2 Quiz Multiple Choice Identifu the choice that best completesthe statementor answers the question. 1. A speciesis a group of similar organismsthat a) can matewith eachother and producefertile offspring. b) can live togetheron an island. c) can migrateto an island from the mainland. d) all have exactlythe sametraits. i \*' 2. What did Darwin observeabout finches in the Gal6pagosIslands? a) Their featherswere adaptedto matchtheir environment. b) Their beakswere adaptationsrelatedto the foods the finchesate. c) They had identicalphenotypesin all locations. d) They had identicalgenotypesin all locations. 3. A trait that helpsan organismsurviveand reproduceis called a(n) a) mutation. b) selection. c) adaPtation. d) variation. 4. The gradualchangein a speciesover time is called a) mutation. b) evolution. c) migration. d) variation. 5. Darwin concludedthat organismson the Gal6pagosIslands a) had changedover time. b) had remainedthe same. c) were the result of selectivebreeding. d) had no variations. 6. Differencesbetweenmembersof the samespeciesare called a) predators. b) selections. c) traits. d) variations. 7 . What is the role of genesin evolution? a) Only genescan be actedon by naturalselection. b) Parentswith recessivegenesdie from overproduction. c) The genesof most surviving parentshaveonly dominantalleles. d) Only traits that are controlled by genescan be actedon by natural selection. ' 8. Which term refersto a speciescreatingmore offspring than can possibly survive? a) naturalselection b) overproduction c) evolution d) variation ID: A ID: A Name: 9. How doesnatural selectionlead to evolution? a) Strongeroffspring kill weakermembersof the species. b) Helpful variationsaccumulateamong surviving membersof the species. c) Overproductionprovidesfood for strongermembersof the species. d) Environmentalchangesfavor weakermembersof the species. \* 10. Which term refersto similar structuresthat relatedspecieshave inheritedfrom a commonancestor? a) DNA sequences b) developmentalorganisms c) homologousstructures d) punctuatedequilibria I L If two organismslook very similar during their early stagesof development,this is evidencethat the organisms a) are not related. b) evolvedfrom different ancestors. c) haveexactly the sameDNA. d) evolvedfrom a common ancestor. 12. How do most fossils form? a) An insectbecomestrappedin amber. b) An entire organismbecomesfrozen in ice. c) A deadorganismbecomesburied in sediment. d) A deadorganismbecomesburied in tar. 13. Scientistscombineevidencefrom fossils, body structures,early development,DNA, and protein structuresto a) determinewhat bonesan animal has in its forelimbs. b) determinethe evolutionaryrelationshipsamong species' c) decidewhich fossils are older than others. \-, development. its early gills have during will whether an organism determine d) 14. What are fossils? a) molds and castsof organismsthat live today b) drawingsof ancientanimalsand other organisms c) footprintsor burrows of small animalsthat live today d) the preservedremainsor tracesof organismsthat lived in the past Modified TruelFalse Indicate whether the statementis true or false. If false, change the identified word or phrase to make the statementtrue. 15. Gradualchangein a speciesover time is called adaptation' 16. An empty spacecalled a cast is formed when an organismburied in sedimentsdissolves' 17. The more similar the DNA sequencesof two speciesare,the more closely relatedthe speciesare' Completion Complete each statement. 18. Organismsbelongingto the same can usually mate and producefertile offspring. Name: \* ID: A 19. Theharmless viceroybutterflylookslike thepoisonous monarchbutterfly.This theviceroybutterflyto survive. 20. A(n) enables is a well-testedconceptthat explainsa wide rangeof observations. 21. In theprocess of naturalselection, theorganisms thatarebestsuitedto their environments aremostlikelv to surviveand 22' The only traits that can be actedupon by natural selectionare thosethat are controlledby 23. The forelimbsof a bird and a mammal are examplesof structures. 24. Similaritiesin the early developmentof chickensand opossumssuggestthat theseanimalssharea common 25. Thetheorvof statesthat speciesevolve quickly over a relatively shorttime.