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 1SQ
Summary Introduction
Concept introduction: An approach in biological classification system that categorizes organisms based on their common ancestors is known as cladistics. A group of organisms that share one or more defined derived characters are called clade. The study of evolutionary relationship between those clade comes under cladistics.
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Students have asked these similar questions
The evolution of various life forms on Earth is summarized in ________.
a.
the binomial naming system
b.
phylogenetic trees
c.
the taxonomic classification system
A cladogram or phylogenetic tree is used to classify organisms into groups based on their shared characteristics, where each node or branching point is known as _________________.
Group of answer choices
A. Common ancestry
B. New species
C. Reproductive isolation
D. New characteristic
E. None of the answers are correct
Since 1735, the Linnaean classification system has been the basic system for all taxonomy in biology. Which statement best explains the reason for changing how organisms are classified today?
A. Organisms are evolving at a faster rate than in the past
B. More diverse and complex organisms are being discovered
C.  There are more organisms today than there were in the past
D. New information about the genetics of species is being discovered
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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- Choose the statement that is incorrect. a. Phylogeny helps us study the spread of viruses through human populations. b. DNA barcoding can identify an individual as belonging to a particular species. c. Lineages that are more distantly related have more similarities in the DNA sequence of their genomes. d. Nonconservative amino acid substitutions can cause drastic changes in phenotypearrow_forwardThe bones of a bird’s wing are similar to the bones in a bat’s wing. This observation is an example of_______ . a. uniformitarianism c. comparative morphology b. evolution d. a lineagearrow_forwardBoth octopuses and cuttlefish have a single-lens eye. Their common ancestor also had a single-lens eye. What word describes the relationship between the octopus eye and the cuttlefish eye? a. homologous c. analogous b. vestigial d. convergentarrow_forward
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