Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 25, Problem 7TY
Summary Introduction
Introduction: A common ancestor represents the origin point of more than one type of species. The phylogenetic tree represents the evolutionary relationship between the organisms which were present in the past (extinct) with the recent organisms (extant). The tree shows the percentage of similarities between the organisms.
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A paraphyletic group includes
a. an ancestor and all of its descendants.
b. an ancestor and some of its descendants.
c. descendants of more than one common ancestor.
d. All of the choices are correct.
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.
Species recognized by the phylogenetic species concept
a. sometimes also would be recognized as species by the biological species concept.
b. are sometimes paraphyletic.
c. are characterized by symplesiomorphies.
d. are more frequent in plants than in animals.
Chapter 25 Solutions
Biology
Ch. 25.1 - Prob. 1CSCh. 25.1 - Prob. 1CCCh. 25.2 - Can two different species have more than one...Ch. 25.2 - Prob. 2CCCh. 25.3 - What shared derived character is common to the...Ch. 25.3 - Prob. 2CCCh. 25.3 - Prob. 3CCCh. 25.3 - Prob. 1EQCh. 25.3 - Prob. 2EQCh. 25.3 - Prob. 3EQ
Ch. 25.4 - Prob. 1CSCh. 25.5 - Prob. 1CCCh. 25 - Prob. 1TYCh. 25 - Which of the following is the correct order of the...Ch. 25 - Prob. 3TYCh. 25 - Which of the following characteristics is (are)...Ch. 25 - Which of the following occur at branch points, or...Ch. 25 - Prob. 6TYCh. 25 - Prob. 7TYCh. 25 - A goal of modern taxonomy is to a. classify all...Ch. 25 - The concept that the preferred hypothesis is the...Ch. 25 - Prob. 10TYCh. 25 - Prob. 1CQCh. 25 - What is a molecular clock? How is it useful in the...Ch. 25 - Core Concept: Evolution What are some advantages...Ch. 25 - Prob. 1COQCh. 25 - Prob. 2COQ
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Based on cladistic analysis: O a. paraphyletic and monophyletic groups are equally valid. b. a shared derived trait that unites birds is feathers. c. it is generally easier to identify the later as compared to the earlier members of a natural group. d. Two of the above are correct. e. None of the above is correct.arrow_forwardTwo different monophyletic groups that share common ancestry with each other more recently than either does with other taxa are known as?arrow_forwardA species is a. composed of members that are capable of interbreeding. b. a group whose members can produce viable offspring. c. does not correspond to any level of Linnaean classification d. A. B and C e. A and B onlyarrow_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_forwardMonophyletic groups are desirable in classification as they Select one: a.reflect evolutionary relationships b. minimise name changes from old to new classifications c. result in fewer groups and are therefore more parsimoniousarrow_forwardWhich of the following is TRUE about a phylogenetic tree? It provides a drawing the reflects the proven relationships between living and extinct species. b It provides a hypothetical model of the relationships between extinct species. c It provides a hypothetical model of the relationships between living and extinct species. d It a diagram used by scientists that provides a model of evolutionary relationships without the need for scientific data.arrow_forward
- A good “phylogenetic” species is one that is A. The smallest diagnosable cluster of organisms within which there is a pattern of ancestry and descent B. The most inclusive population of individuals having the potential for phenotypic cohesion through intrinsic cohesion mechanisms. C. Morphologically distinctive from other groups of organisms D. An actually or potentially interbreeding group that is reproductively isolated from other such groups.arrow_forwarda. draw a diagonal tree b. Which organism is an outgroup? c. Which organisms are sister taxa or share a common ancestor?arrow_forwardA shared derived character is a. derived from an ancestral character. b. more recently developed than an ancestral character. c. found in all or most of the members of an ingroup. d. all of the above.arrow_forward
- The branch of systematic biology that assigns organisms to specificclassifications (domain, phyla, class, etc.) is calleda. phylogenetics.b. taxonomy.c. systematics.d. cladistics.arrow_forwardWhich of the following assumptions is not part ofcladistics?a. A lineage’s characters change over time.b. All species share common ancestry.c. Each lineage branches from another lineage.d. Similar body parts are evidence of a recentdivergencearrow_forwardA shared ancestral feature is a/an select one a. symplesiomorphy b.synapomorphy c.autapomorphyarrow_forward
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