Evolution

What role do mutations play in the process of evolution?

• Introduce new genetic variations

• Eliminate harmful traits

• Stabilize genetic diversity

• Prevent natural selection

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How does natural selection influence a population?

• It favors individuals with advantageous traits

• It increases genetic drift

• It reduces genetic diversity

• It prevents adaptation

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What is genetic drift and how does it affect populations?

• Random changes in allele frequency

• A process that favors beneficial traits

• A mechanism that increases genetic diversity

• A method of introducing new genetic material

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Why is migration important in evolutionary processes?

• It introduces new genetic material and increases diversity

• It stabilizes allele frequencies

• It eliminates harmful mutations

• It prevents speciation

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What is an example of adaptation mentioned in the passage?

• Development of thicker fur in colder climates

• Increase in genetic drift

• Random changes in DNA sequence

• Isolation leading to speciation

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What is the key mechanism of evolution according to Darwin's theory?

• Natural selection

• Genetic mutation

• Artificial selection

• Genetic drift

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What did Darwin observe about the finches on the Galápagos Islands?

• They had different beak shapes depending on their food sources.

• They all had the same beak shape.

• They were all the same species.

• They did not adapt to their environment.

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What does 'survival of the fittest' mean in the context of Darwin's theory?

• The fittest individuals are more likely to pass on their traits to the next generation.

• Only the strongest individuals survive.

• All individuals have an equal chance of survival.

• The weakest individuals are eliminated.

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What was the significance of Darwin's voyage on the HMS Beagle?

• It provided him with observations that supported his theory of evolution.

• It was a leisure trip with no scientific purpose.

• It was a military expedition.

• It was a trade mission.

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How do species change over time according to Darwin's theory?

• Through adaptation and natural selection over many generations.

• Through sudden and random changes.

• By remaining unchanged.

• By migrating to new environments.

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