C8e_26_Test_Bank

Biology with MasteringBiologyâ„¢ (8th Edition)

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1 Biology, 8e (Campbell) Chapter 26 Phylogeny and the Tree of Life Multiple-Choice Questions 1) The legless condition that is observed in several groups of extant reptiles is the result of A) their common ancestor having been legless. B) a shared adaptation to an arboreal (living in trees) lifestyle. C) several instances of the legless condition arising independently of each other. D) individual lizards adapting to a fossorial (living in burrows) lifestyle during their lifetimes. Answer: C Topic: Concept 26.1 Skill: Knowledge/Comprehension 2) The scientific discipline concerned with naming organisms is called A) taxonomy. B) cladistics. C) binomial nomenclature. D) systematics. E) phylocode Answer: A Topic: Concept 26.1 Skill: Knowledge/Comprehension 3) The various taxonomic levels (viz, genera, classes, etc.) of the hierarchical classification system differ from each other on the basis of A) how widely the organisms assigned to each are distributed throughout the environment. B) the body sizes of the organisms assigned to each. C) their inclusiveness. D) the relative genome sizes of the organisms assigned to each. E) morphological characters that are applicable to all organisms. Answer: C Topic: Concept 26.1 Skill: Knowledge/Comprehension 4) Which of these illustrates the correct representation of the binomial scientific name for the African lion? A) Panthera leo B) panthera leo C) Panthera leo D) Panthera Leo E) Panthera leo
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2 Answer: E Topic: Concept 26.1 Skill: Knowledge/Comprehension 5) A phylogenetic tree that is "rooted" is one A) that extends back to the origin of life on Earth. B) at whose base is located the common ancestor of all taxa depicted on that tree. C) that illustrates the rampant gene swapping that occurred early in life's history. D) that indicates our uncertainty about the evolutionary relationships of the taxa depicted on the tree. E) with very few branch points. Answer: B Topic: Concept 26.1 Skill: Knowledge/Comprehension 6) The correct sequence, from the most to the least comprehensive, of the taxonomic levels listed here is A) family, phylum, class, kingdom, order, species, and genus. B) kingdom, phylum, class, order, family, genus, and species. C) kingdom, phylum, order, class, family, genus, and species. D) phylum, kingdom, order, class, species, family, and genus. E) phylum, family, class, order, kingdom, genus, and species. Answer: B Topic: Concept 26.1 Skill: Knowledge/Comprehension 7) The common housefly belongs to all of the following taxa. Assuming you had access to textbooks or other scientific literature, knowing which of the following should provide you with the most specific information about the common housefly? A) order Diptera B) family Muscidae C) genus Musca D) class Hexapoda E) phylum Arthropoda Answer: C Topic: Concept 26.1 Skill: Application/Analysis 8) If organisms A, B, and C belong to the same class but to different orders and if organisms D, E, and F belong to the same order but to different families, which of the following pairs of
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C8e_26_Test_Bank - Biology, 8e (Campbell) Chapter 26...

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