Evidence of Evolution CCA Review 12/ 24

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What is the evidence of evolution?

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Evidence of evolution includes fossil records, comparative anatomy, molecular biology, and biogeography that demonstrate how species have changed over time.

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What are homologous structures?

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Homologous structures are anatomical features in different species that share a common ancestry, even if they have different functions.

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What is the significance of amino acid differences in evolutionary biology?

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Differences in amino acids among species can indicate how closely related they are; fewer differences suggest a more recent common ancestor.

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What does it mean if two species have similar DNA?

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Similar DNA sequences suggest that the species share a common ancestor and have diverged from each other over time.

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What is a common ancestor?

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A common ancestor is a species from which two or more different species have evolved.

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How do fossils provide evidence for evolution?

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Fossils show the physical characteristics of organisms that lived in the past, allowing scientists to trace changes in species over time.

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What is the role of comparative anatomy in understanding evolution?

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Comparative anatomy studies the similarities and differences in the anatomy of different species to understand evolutionary relationships.

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What is the significance of the forelimb bone structure in different species?

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The similarity in forelimb bone structures among different species indicates a common ancestry despite their different functions.

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What is molecular biology's contribution to evolutionary evidence?

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Molecular biology examines the genetic material of organisms, providing insights into evolutionary relationships through DNA and protein comparisons.

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What is biogeography?

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Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time, providing evidence for evolution.