1. True/False (0.5 pt): Life has always existed on the Galapagos Islands 2. Describe the relatedness between the Finches that live on the islands versus those that live on the mainland (1 pt):
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Step 1: The Galapagos Islands are volcanic islands, meaning they formed from volcanic eruptions. Show more…
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True or false: Can you provide any evidence? 1. When species come into contact with closely related species, they interbreed and become one species again. 2. Medium ground finches with relatively large beaks tend to have offspring with relatively large beaks. 3. Birds with a beak type poorly shaped for the current environment are able to adapt by changing their beak types. 4. Speciation, or the evolution of new species, in Galapagos finches results because natural selection favors different beak types on different islands.
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All except which of the following observations below support the ideas presented in Darwin's sketch "I think" of the Tree of Life? Mockingbirds on different islands of the Galapagos have different markings. Fossils of extinct animals resemble animals living today. Animals that are extinct were much larger than animals living today. Tortoises from different islands of the Galapagos have different shells. Darwin suggested that artificial selection is the process by which descent with modification (the evolutionary alteration and diversification of ancestral species) occurs. True False
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Darwin observed that finches in the Galapagos Islands were more similar to finches in South America than to finches in Great Britain. True False
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