Evolution of Galapagos Finches

What is the main focus of researchers studying the Galapagos Islands?

• Studying the diversity of species

• Investigating the geological history of the islands

• Analyzing the migration patterns of birds

• Exploring the impact of climate change on the ecosystem

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Which of the following statements is true about the Galapagos finches?

• They are found only on Daphne Major island

• They are all unrelated to each other

• They have evolved from a single common ancestor

• They have the same beak size and shape

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NGSS.HS-LS4-1

What is the significance of the beak size in the survival of the medium ground finches during the drought?

• Birds with larger beaks had a higher survival rate

• The survival rate was the same for all beak sizes

• Beak size did not affect the survival of the finches

• Birds with smaller beaks had a higher survival rate

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What did the Grants observe about the beak size of the offspring after the drought?

• The beak size varied randomly

• The average beak size remained the same

• The average beak size decreased

• The average beak size increased

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NGSS.HS-LS4-5

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What caused the change in beak size during the drought?

• Natural selection

• Genetic mutations

• Competition for food

• Environmental factors

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What happened to the beak size of the finches after the drought when larger seeds became scarce?

• The beak size increased

• The beak size remained the same

• The beak size varied randomly

• The beak size decreased

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NGSS.HS-LS4-5

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What role do songs play in keeping different species of finches from mating?

• Songs have no effect on mating

• Songs help in identifying potential mates

• Songs repel mates from different species

• Songs attract mates from different species

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NGSS.HS-LS2-8

What did the Grants observe when they played back the cactus finch song to the medium ground finches?

• The medium ground finches ignored the cactus finch song

• The medium ground finches sang a different song

• The medium ground finches responded to the cactus finch song

• The medium ground finches attacked the loudspeaker

How do male finches choose their mates?

• Based on the song of the female

• Based on the beak size of the female

• Based on the color of the female

• Based on the size of the female

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NGSS.MS-LS1-4

What is the main factor that leads to the formation of new species?

• Environmental changes

• Competition for resources

• Genetic mutations

• Geographical separation

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NGSS.HS-LS4-5

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