Ch. 15 Study Guide.docx - Chapter 15 Evidence for Evolution...

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Chapter 15: Evidence for Evolution – Study Guide A Fish with Fingers? A transitional fossil fills a gap in our knowledge of evolution TYPE IN YOUR ANSWERS USING A DIFFERENT COLOR! ?? points possible converted to 100 point scale in Launchpad Complete and submit via Ch. 15 Dropbox Define: 11 points [VERTEBRATE] bony or cartilaginous backbones [DESCENT WITH MODIFICATION] all living things are related, & different species emerged over time due to natural selection [FOSSILS] the preserved remains or impressions of once-living organisms [FOSSIL RECORD] an assemblage of fossils arranged in order of age, which provides evidence of changes in species over time [PALEONTOLOGIST] scientists who study ancient life by means of the fossil record [RADIOMETRIC DATING] radioactive isotopes as a measure for determining the age of a rock or fossil [RELATIVE DATING] age of a fossil from its position relative to layers of rock or fossils of known age [INVERTEBRATE] animal without a backbone [TETRAPOD] Vertebrate with four true limbs [HOMOLOGY]

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