Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 21, Problem 6TY
Summary Introduction
Introduction:
Evolution is the change in the characteristics of organisms in a species over the course of generations as a result of natural selection. By studying the similarities and differences among species, evolutionary relationship between species can be constructed.
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A group of individuals that can interbreed in nature and produce viable offspring would be considered to be a species according to the
Ophylogenetic species concept.
Obiological species concept.
evolutionary species concept.
Oecological species concept.
general lineage concept.
A monophyletic taxon (group) contains an ancestor and all of its descendants.
True
False
When classifying organisms, all of these qualities are important, but which one can most accurately tell us how closely related two species are?
geographical range
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Chapter 21 Solutions
Principles of Biology
Ch. 21.1 - Refer back to Figure 4.8. Which of the three...Ch. 21.1 - Prob. 1CCCh. 21.1 - Prob. 1TYKCh. 21.1 - Prob. 2TYKCh. 21.2 - Prob. 1CCCh. 21.2 - Prob. 1TYKCh. 21.2 - Prob. 2CCCh. 21.2 - Prob. 2TYKCh. 21.2 - Prob. 3TYKCh. 21.3 - What shared derived character is common to the...
Ch. 21.3 - Prob. 2CCCh. 21.3 - Prob. 1TYKCh. 21.3 - Prob. 2TYKCh. 21.4 - Prob. 1BCCh. 21.4 - Prob. 1CCCh. 21.4 - Prob. 1TYKCh. 21.4 - An analysis of the number of neutral genetic...Ch. 21.5 - Prob. 1CCCh. 21.5 - Which of the following is an example of horizontal...Ch. 21 - Prob. 1TYCh. 21 - Which of the following is the correct order of the...Ch. 21 - Which type of taxon consists of organisms with the...Ch. 21 - Prob. 4TYCh. 21 - Prob. 5TYCh. 21 - Prob. 6TYCh. 21 - Prob. 7TYCh. 21 - Prob. 8TYCh. 21 - The concept that the preferred hypothesis is (lie...Ch. 21 - Prob. 10TYCh. 21 - Prob. 1CCQCh. 21 - What is a molecular clock? How is it used in...Ch. 21 - Prob. 3CCQCh. 21 - Prob. 1CBQCh. 21 - Prob. 2CBQ
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- A field of Biology that provides an in-depth understanding of how species evolve through genetic changes overtime. Cladistics Taxonomy Phylogenetics Systematicsarrow_forwardPhylogeny refers to the evolutionary descent of taxa. It refers to the relationship between ancestors and descendants and relationships among descendant taxa. It shows the lineage of taxa which can be summarized in a branching diagram called a phylogenetic tree.1. Express some basic evolutionary relationships among groups of microorganisms, plants, and animals; 2. Illustrate the relationship of organisms with their environment; and 3. Analyze environmental factors contributing to biodiversity richness and lossarrow_forwardwhat is phylogeny? A group whose members share one or more defining derived traits The evolutionary history of a species or a group of species The process of making hypotheses about evolutionary relationships among cladesarrow_forward
- Define the following terms: -taxon (taxa) -operational taxonomic unit (OTU) -morphology -anatomy -flora -fauna -taxonomy -systematics -phylogeny -pheneticsarrow_forwardBiological evolution is defined as a change in the of a species over time. survival rate genetic makeup number of individuals number of offspringarrow_forwardDefine the following term: -taxon (taxa) -operational taxonomic unit (OTU) -morphology -anatomy -flora -fauna -taxonomy -systematics -phylogenyarrow_forward
- The Sweedish botanist Carolus Linnaeus is recognized as the first individual to generate a unified taxonomic system. Which of the following statements regarding the work of Linnaeus is accurate? Select all that apply. Check All That Applyarrow_forwardPART I. THE THEORY OF EVOLUTION. DIRECTIONS: Complete the paragraph about evidence of evolution by choosing the correct word provided below. biogeography fossils homologous molecular vestigial The theory of evolution states that modern species have descended from ancestral species through evolution and speciation. It is supported by a large body of evidence such as found in geologic strata. These are remnants of ancient life that provide evidence for the evolutionary change through now-extinct forms that led to modern species. Modern species retain certain structures that arose from a common ancestor structures. Other remnants of what was once useful to the ancestors are or the findings of the original distribution of related species across the Earth the connections between ancient evidence, DNA sequences have also shed light on the occurrence of such as structures. Furthermore, we can infer from the landmasses. Finally, through some of the mechanisms of evolution.arrow_forwardDefine the following terms: divergent evolution, convergent evolution, analogous structures, homologous structuresarrow_forward
- Give an introduction on the differences between morphological, phylogenetic and biological species conceptsarrow_forwardCLASSIFICATION AND EVOLUTION Caminalcules are imaginary animals invented by the evolutionary biologist Joseph Camin. In this lab exercise, you will construct an evolutionary tree of the Caminalcules using both the "living" species and the additional 57 "fossil" species. This illustrates how modern classification schemes attempt to reflect evolutionary history. In the process of doing this exercise you will be introduced to concepts such as convergent evolution and vestigial structures. The Phylogeny of Caminalcules Using a large sheet of paper or long size bond paper, construct a phylogenetic tree for the Caminalcules. Use a meter stick or ruler to draw 20 equally spaced horizontal lines on the paper. Each of the horizontal line will be used to indicate an interval of one million years. Label each line so that the one at the bottom of the paper represents an age of 19 million years and the top line represents the present (0 years). 1. Cut out all the Caminalcules (including the living…arrow_forwardWhich of the following statements is correct about the hierarchy of the taxonomic system currently used to classify organisms? Many different families of organisms belong to the same order. Many different orders of organisms belong to the same species. Many different classes of organisms belong to the same genus. Many different kingdoms of organisms belong to the same phylum.arrow_forward
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