Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 18, Problem 3SQ
Summary Introduction
Concept introduction: The taxon “species” is the basic unit of classification, and it is the unit of biodiversity. It comprises organisms that resemble very close to each other. The term “clade” includes a group of organisms that are believed to comprise all the evolutionary descendants of a common ancestor.
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The only taxon that is always the same as a clade is the____ . a. genus c. species b. family d. kingdom
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A clade is_____ . a. defined by a derived character c. a hypothesis b. a monophyletic group d. all of the above
Chapter 18 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 18 - Hawaiian Honeycreeper Phylogeny The po'ouli...Ch. 18 - Hawaiian Honeycreeper Phylogeny The po'ouli...Ch. 18 - Hawaiian Honeycreeper Phylogeny The po'ouli...Ch. 18 - Hawaiian Honeycreeper Phylogeny The po'ouli...Ch. 18 - Prob. 1SQCh. 18 - Which of the following assumptions is not part of...Ch. 18 - Prob. 3SQCh. 18 - Prob. 4SQCh. 18 - In a cladogram, each node represents a(n) _______...Ch. 18 - Constructing a cladogram _______ . a. may involve...
Ch. 18 - In cladograms, sister groups are _______ . a....Ch. 18 - Through ______, a body part of an ancestor is...Ch. 18 - Homologous structures among major groups of...Ch. 18 - Prob. 10SQCh. 18 - Molecular clocks are based on comparisons of the...Ch. 18 - Prob. 12SQCh. 18 - All of the following data types can be used as...Ch. 18 - Choose the statement that is incorrect. a....Ch. 18 - Prob. 15SQCh. 18 - Match the terms with the most suitable...Ch. 18 - In the late 1800s, a biologist studying animal...Ch. 18 - The photos shown above illustrate a case of...Ch. 18 - Bonobas and chimpanzees are sister groups. Humans,...
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- A taxonomic group that contains species that have similar phenotypes due to convergent evolution is a. paraphyletic. b. monophyletic. c. polyphyletic. d. a good cladistic group.arrow_forwardA taxon composed of all species derived from a common ancestoris referred to asa. a phylum.b. a monophyletic group or clade.c. a genus.d. an outgroup.e. all of the abovearrow_forwardOn a phylogenetic tree, which term refers to lineages that diverged from the same place? a. sister taxa b. basal taxa c. rooted taxa d. dichotomous taxaarrow_forward
- A branch points on a phylogenetic tree is where scientists that study systematics place a groups organisms that share the formation of a new character. b organisms that have not yet diverged. c the emergence of a new genus. d the root of a phylogeny.arrow_forwardIn a paraphyletic group a. all species are more closely related to each other than they are to a species outside the group. b. evolutionary reversal is common. c. polyphyly also usually occurs. d. some species are more closely related to species outside the group than they are to some species within the group.arrow_forwarda diagram that shows evolutionary connections between clades is called a_______ .a. karyotype c. cladogramb. molecular clock d. homologous structurearrow_forward
- Butterfly wings and bat wings are ____ structures, while bird wings and bat wings are ____ structures. a. homozygous … heterozygous b. homologous … analogous c. analogous … phyllogenous d. analogous … homologousarrow_forwardPeople studying fossils have to employ which of the following species concepts? a. The Morphospecies Concept b. The Biological Species Concept c. The Phylogenetic Species Concept d. The Physical Species Conceptarrow_forwardA shared ancestral feature is a/an select one a. symplesiomorphy b.synapomorphy c.autapomorphyarrow_forward
- Organisms that are closer together on a cladograma. are in the same family.b. comprise an outgroup.c. share a more recent common ancestor than those organisms that are farther apart.d. share fewer derived characters than organisms that are farther apart.arrow_forwardThe approach to estimating phylogenetic trees is most like the approach of which species concept? 2) A) Morphological species concept B) Biological species conceptC) Subspecies concept D) Phylogenetic species concept Then explain why the answer is correct and the rest are inccorect.arrow_forwardA group of organisms that includes a recent common ancestor and all its descendants is (a) polyphyletic (b) paraphyletic (c) monophyletic (d) an example of horizontal gene transfer (e) a sister grouparrow_forward
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