Becks of Finches

Base your answer(s) to question(s) on the diagram below and on your knowledge of biology. The diagram shows the heads of four different species of Galapagos Islands finches. The four different types of beaks shown are most likely the result of

• gene manipulation 

• natural selection 

• unchanging environmental conditions 

• patterns of behavior learned from parents 

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Base your answer(s) to the following question(s) 8. on the diagram below and on your knowledge of
biology.
Several of the Galapagos Islands are inhabited by grasshoppers, beetles, flies, bees, and butterflies. Finches that feed on these consumers would have beaks adapted for 

• probing, only 

• probing or grasping 

• crushing or probing 

• parrotlike feeding or grasping 

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Base your answer(s) to the following question(s) on the information below and on your knowledge of biology. The diagram below represents the relationship between beak structure and food in several species of finches in the Galapagos Islands. 
Which factor most directly influenced the evolution of the diverse types of beaks of these finches? 

• predation by humans 

• available food sources 

• oceanic storms 

• lack of available niches 

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Base your answer(s) to the following question(s) on the diagram below that shows variations in the beaks of finches in the Galapagos Islands and on your knowledge of biology. The diversity of species seen on the Galapagos Islands is mostly due to

• gene manipulation by scientists 

• gene changes resulting from mitotic cell division 

• natural selection 

• selective breeding 

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Which of the following best explains the concept of "survival of the fittest" in the context of finch beak evolution?

• Finches with the most attractive beaks are more likely to find a mate

• Finches that can sing the loudest will scare away predators and survive

• Finches with beak shapes that best match available food sources are more likely to survive and reproduce

• The largest finches are always the ones that survive, regardless of beak shape

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How does the beak shape of finches support the theory of evolution?

• It shows that finches can change their beak shape at will

• It demonstrates that beak shapes have remained the same over millions of years

• It provides evidence of adaptation and natural selection based on environmental needs

• It indicates that all finches will eventually evolve to have the same beak shape

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Why is studying the beaks of finches important for understanding evolution?

• It provides a clear example of how traits can be passed down through generations

• It shows that animals can choose to change their physical traits

• It disproves the theory of natural selection

• It indicates that environmental changes have no impact on physical traits

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What is the primary reason for the variation in beak shapes among finches on the Galápagos Islands?

• Random genetic mutations without any adaptive value

• Adaptation to different food sources

• Seasonal changes in the environment

• Interspecies breeding

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In what way can the impact of environmental changes on finch beak shapes be observed?

• By noting changes in beak shapes over a single finch's lifetime

• Through fossil records showing beak shapes over millions of years

• By comparing beak shapes of finches from different islands with varying environments

• Environmental changes have no visible impact on finch beak shapes

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How do finches with different beak shapes affect the ecosystem of the Galápagos Islands?

• They have no significant impact on the ecosystem

• They contribute to the health of the ecosystem by filling different ecological niches

• They harm the ecosystem by outcompeting other bird species

• They reduce the diversity of plant species by eating only certain types of seeds

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