Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 24.3, Problem 2SB
Summary Introduction
To review:
The morphological traits utilized in discovering the long term evolutionary relationship within a group of organisms.
Introduction:
Morphology is the branch of biology that deals with the study of the internal and external structure of organisms and their specific features. Morphological traits are analyzed in order to evaluate the similarities and variations in species for taxonomic studies.
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In what ways can an evolutionary trend develop during the history of a genus or a family?
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What is a Homology?
A) When an anatomic feature is shared among organisms and their descendants
B) When two organisms appear the same
C) When convergent evolution produces similar phenotypes
Chapter 24 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 24.1 - How does the system of binomial nomenclature...Ch. 24.1 - Prob. 2SBCh. 24.2 - What is the difference between a phylogenetic tree...Ch. 24.2 - What are the differences between a monophyletic...Ch. 24.3 - Prob. 1SBCh. 24.3 - Prob. 2SBCh. 24.3 - Prob. 3SBCh. 24.4 - Prob. 1SBCh. 24.5 - How does outgroup comparison facilitate the...Ch. 24.5 - Prob. 2SB
Ch. 24.5 - Prob. 3SBCh. 24.6 - What assumption underlies the use of genetic...Ch. 24.6 - Prob. 2SBCh. 24.7 - Prob. 1SBCh. 24.7 - Prob. 2SBCh. 24 - The evolutionary history of a group of organisms...Ch. 24 - Prob. 2TYKCh. 24 - Which of the following does not help systematists...Ch. 24 - In a cladistic analysis, a systematist groups...Ch. 24 - Prob. 5TYKCh. 24 - Prob. 6TYKCh. 24 - Prob. 7TYKCh. 24 - When systematists study morphological or...Ch. 24 - Which of the following pairs of structures are...Ch. 24 - To construct a phylogenetic tree by applying the...Ch. 24 - Prob. 11TYKCh. 24 - Prob. 12TYKCh. 24 - Prob. 13TYKCh. 24 - Prob. 14TYKCh. 24 - Imagine that you are a systematist studying a...Ch. 24 - Design an Experiment Imagine that you are trying...Ch. 24 - Prob. 17TYKCh. 24 - The phylogenetic tree for 12 cat species (Felidae)...
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- How does a phylogenetic tree indicate major evolutionary events within a lineage?arrow_forwardHow can phylogenetics be used to reconstruct the evolutionary history of specific traits in a group of organisms?arrow_forwardWhen constructing phylogenetic trees, what is the purpose of applying maximum parsimony? Parsimony allows the researcher to "root" the tree. For trees based on morphology, the most parsimonious tree requires the maximum evolutionary events. The outgroup roots the tree, allowing the principle of parsimony to be applied. For trees based on morphology, the most parsimonious is the one that uses the simplest explanation of evolutionary events.arrow_forward
- Based on their anatomical and behavioral differences, biologists previously placed humans and chimpanzees in different families, but now DNA sequence data suggest that they are closely related and should be placed in the same family. What are some advantages of using DNA sequences to decide how to classify organisms? What might be some disadvantages?arrow_forwardWhy are vestigial structures among organisms evidence for evolution? Give an example of another vestigial structure.arrow_forwardWhich of the following is FALSE regarding phylogenetic trees? 1) The branch lengths on the tree are scaled to molecular (DNA) changes and/or time. 2)Phylogenetic trees have shown us that there is much more bacterial diversity compared to eukaryotes. 3) Phylogenetic trees show the evolutionary relatedness of different organisms. 4). The branch lengths on the tree depict abiotic and biotic factors affecting speciation.arrow_forward
- Should more weight should be given to genetic data or to information derived from comparative anatomy (phenotypes) in regard to taxonomic classification?arrow_forward1) How have scientists created the "tree of life"? Do you think that variations exist between these created trees? 2) What are the pros and cons to creating a "tree of life"? 3) When constructing this tree of life we can see many dead ends or organisms that we are unsure of their exact placement. Why is this? 4) Choose one species (either alive today or extinct) and describe its taxonomic classification. What traits or characteristics were used to classify this species into its current taxonomic classification? What other organisms are considered to be its closest relatives?arrow_forwardHow does a phylogenetic tree indicate the evolutionary relatedness of species?arrow_forward
- What is an Analogy? A) When an anatomic feature is shared among organisms and their descendants B) When two organisms appear the same C) When convergent evolution produces similar phenotypesarrow_forwardWhy don't shared ancestral characters provide evidence for relationships between organisms within a taxon that has those traits?arrow_forwardWhat is evolutionary classification?arrow_forward
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