Lesser Apes Great Apes Gibbon (14 species in 4 genera) Orangutan Gorilla Bonobo Chimpanzee Human Delayed puberty Earlobes Robust canine teeth The characters listed do not represent all the evolutionary changes that occurred. Instead, they are a sample of the changes that occurred at each stage. Based on the above phylogeny Select one: a. orangutans and gorillas are more closely related than humans and gorillas. b. humans and gorillas are more closely related than orangutans and gorillas. c. the gorilla is the most recent common ancestor to bonobos, chimps, and humans. d. the orangutan is the most recent common ancestor of all great apes. e. all great apes walk with an upright gait.
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Gibbon Gorilla Common_Chimpanzee Modern_Human Bonoboo Green_Monkey 0.2 17. Answer the questions below using the tree from the COII sequence data. 1. According to this tree, with which other living species do modern humans share their most recent common ancestor? 1. Gibbon 2. To which living species is the common chimpanzee most closely related? 1. Modern Human 3. What is the sister group of all gorillas? 1. Gibbon 4. To which species in this tree are gibbons most closely related? 1. Gorilla 5. According to this tree, are Great Apes (traditionally defined as gorillas, chimpanzees, and orangutans) a monophyletic group, polyphyletic, or a paraphyletic group? 1. Polyphyletic 6. What do these results suggest about the proper taxonomy of primates? In other words, which groupings of primates should we consider taxa and therefore give names to? 1. 7. It has generally been thought that the "knuckle walking" of great apes and the upright bipedalism of humans both evolved after the split between apes and humans. According to this tree, when did knuckle-walking evolve, and when did bipedalism evolve? Does our analysis challenge previous thinking? How? 8. How might we improve our confidence that we have constructed the tree that accurately represents evolutionary relationships among ape species?
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Gorillas are more closely related to Bonobos than Chimpanzees The common ancestor of Humans and Gorillas lived more recently than the common ancestor of Humans and Bonobos Bonobos and Chimpanzees are sister species Humans evolved directly from Chimps
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Which of these gives the correct order of divergence from the main line of descent leading to humans? a. prosimians, monkeys, Asian apes, African apes, humans b. gibbons, baboons, prosimians, monkeys, African apes, humans c. monkeys, gibbons, prosimians, African apes, baboons, humans d. African apes, gibbons, monkeys, baboons, prosimians, humans e. H. habilis, H. erectus, H. neanderthalensis, Cro-Magnon
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