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Evidence for Evolution

Evidence for Evolution. Evolution. Evidence for Evolution 1. Fossil evidence petrified or preserved specimen in things like: ice, amber, sand, clay some are extinct remains of the hard parts of organisms. Evolution. Evidence for Evolution Fossil evidence relative dating

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Evidence for Evolution

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  1. Evidence for Evolution

  2. Evolution Evidence for Evolution 1.Fossil evidence petrified or preserved specimen in things like: ice, amber, sand, clay some are extinct remains of the hard parts of organisms

  3. Evolution Evidence for Evolution Fossil evidence relative dating older fossils are found in the lower layers of rock while younger fossils are found in upper layers of rock can be used to figure out when organisms lived

  4. Evolution Evidence for Evolution Fossil evidence radiometric dating uses the rate of decaying radioactive isotopes to determine age of fossils carbon dating looks at the amount of C14 to amount of C12 in a fossil

  5. Evolution Evidence for Evolution 2.Genetics DNA/RNA mutations gene pool entire collection of genes in a population

  6. Evolution Evidence for Evolution 3.ComparativeEmbryology embryology- similarities among the young embryos suggest evolution from a common ancestor

  7. Evolution Evidence for Evolution 4.ComparativeBiochemistry looking for similarities and differences in specific macromolecules antibodies hemoglobins

  8. Evolution Evidence for Evolution 5.Anatomy homologous structures structural features with a common origin analogous structures body parts of organisms that do not have a common evolutionary origin but have similar functions vestigial structure a body structure that has no function in a present-day organism but was once “useful” to an ancestor

  9. Evolution Evidence for Evolution 5.Anatomy homologous structures

  10. Evolution Evidence for Evolution 5.Anatomy vestigial structure

  11. Evidence for Evolution • More examples • mimicry: structural adaptation that enables one species to resemble another • camouflage: adaptation that allows a species to blend into their surroundings • antibiotic resistance Evolution

  12. Evidence for Evolution More examples Evolution

  13. Evidence for Evolution More examples Evolution

  14. Evidence for Evolution More examples Evolution

  15. Barreleye fishMacropinna microstoma

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