Topic 5- Evolution

Front

What is evolution?

Back

Evolution is the process through which species change over time through variations and natural selection.

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What is natural selection?

Back

Natural selection is the mechanism by which individuals with favorable traits are more likely to survive and reproduce.

Front

Define adaptation in the context of evolution.

Back

Adaptation is a trait that enhances an organism's ability to survive and reproduce in its environment.

Front

What is a species?

Back

A species is a group of organisms that can interbreed and produce fertile offspring.

Front

Explain the concept of genetic variation.

Back

Genetic variation refers to the differences in DNA among individuals within a population.

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What role do mutations play in evolution?

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Mutations are changes in DNA that can create new traits, contributing to genetic variation.

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What is the significance of fossils in understanding evolution?

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Fossils provide evidence of past life forms and show how species have changed over time.

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What is the theory of common descent?

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The theory of common descent suggests that all living organisms share a common ancestor.

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Define speciation.

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Speciation is the process by which new species arise from existing species.

Front

What is the difference between homologous and analogous structures?

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Homologous structures are similar due to shared ancestry, while analogous structures are similar due to convergent evolution.