Evolution Test Honors Biology

what did Charles Darwin observe in finch populations of the Galapagos Islands off the coast of South America?

• different species on different islands
• all species on one of the islands
• identical species on all the islands
• the same species as North America

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If an organism has a vestigial structure, that structure likely once had a function in a(n)

• close relative
• early ancestor
• unrelated organism
• embryological stage

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What is speciation?

• combining of two species to form one with different traits

• isolation that affects mating behaviors

• timing of mating that prevents normal sexual selection

• divergence of two or more species from an existing one

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An earthquake causes an ocean channel top open and separate an island into two. The species on each section are now in

• geographic isolation

• behavioral isolation

• disruptive selection

• temporal isolation

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What is the process in which humans breed organisms for certain traits?

• natural selection
• inheritance
• artificial selection
• descent withOUT modification

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Why are advantageous traits more likely to be passed onto offspring?

• Because they are more likely to survive and reproduce.
• Because they come from dominant alleles.
• Because they come from recessive alleles.
• Because the trait is an acquired phenotype.

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Which of the following ideas proposed by Lamarck was later found to be incorrect?

• Acquired characteristics can be inherited
• All species are descended from other species
• Living things change over time
• There is a relationship between an organism and its environment

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Physical separation of a population, leading to speciation.

• reproductive isolation
• geographic isolation
• speciation
• gene pool

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How would you describe these two features?

• Homologous structure
• Analogous structure
• Structural adaption
• Functional adaption

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What characteristic did Darwin observe about the finches on the Galapagos Islands?

• Their feathers 
• Genotypes 
• Their beaks
• Their body sizes

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