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Anatomy & Physiology

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Set 23 Evolutionary Patterns Phylogeny And Fossils

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Question 1

(True False)

Free
Individual populations cannot be included as separate taxa in a phylogenetic tree.

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Question 2

(Multiple Choice)

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Which of the following statements is always TRUE about sister taxa on a phylogenetic tree?

A)Sister taxa are always the result of speciation events that result in two new genera.
B)Sister taxa always share a most recent common ancestor that is not shared with any other taxon on the phylogeny.
C)Sister taxa are always the result of the most recent divergence event represented on a phylogeny.
D)Sister taxa are always defined by shared ancestral characteristics that have been modified in all other taxa in the phylogeny.

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Question 3

(Multiple Choice)

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The phylogeny below shows: The phylogeny below shows:   (left to right) Zoonar/K. Jorgensen/age fotostock; S Sailer/A Sailer/age fotostock; J & C Sohns/age fotostock; Michael Dick/ Animals Animals-Earth Scenes; FLPA/Jurgen & Christi/age fotostock; Yellow Dog Productions/Getty Images. 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. (left to right) Zoonar/K. Jorgensen/age fotostock; S Sailer/A Sailer/age fotostock; J & C Sohns/age fotostock; Michael Dick/ Animals Animals-Earth Scenes; FLPA/Jurgen & Christi/age fotostock; Yellow Dog Productions/Getty Images.

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.

Answer