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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Textbook Question
Chapter 31.3, Problem 1SB
Which major groupings of animals defined on the basis of morphological characters have been confirmed by molecular sequence studies?
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Chapter 31 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 31.1 -
1. What characteristics distinguish animals from...Ch. 31.1 - How does the ability of animals to move through...Ch. 31.2 - What is a tissue, and what three primary tissue...Ch. 31.2 - What type of body symmetry do humans have?Ch. 31.2 - What is the functional significance of the coelom?Ch. 31.2 - Prob. 4SBCh. 31.3 - Which major groupings of animals defined on the...Ch. 31.3 - Prob. 2SBCh. 31.4 - Prob. 1SBCh. 31.4 - Prob. 2SB
Ch. 31.5 - Prob. 1SBCh. 31.5 - Prob. 2SBCh. 31.5 - What do ctenophores eat, and how do they collect...Ch. 31.6 - Prob. 1SBCh. 31.6 - Prob. 2SBCh. 31.6 - Prob. 3SBCh. 31.6 - Prob. 4SBCh. 31.7 - Prob. 1SBCh. 31.7 - If an arthropods rigid exoskeleton cannot be...Ch. 31.7 - Prob. 3SBCh. 31.7 - Prob. 4SBCh. 31 - Prob. 1TYKCh. 31 - Prob. 2TYKCh. 31 - Protostomes and deuterostomes typically differ in:...Ch. 31 - Prob. 4TYKCh. 31 - Which organ system is absent in flatworms (phylum...Ch. 31 - Prob. 6TYKCh. 31 - Prob. 7TYKCh. 31 - Which body region of an insect bears the walking...Ch. 31 - Prob. 9TYKCh. 31 - What is the major morphological innovation seen in...Ch. 31 - Prob. 11TYKCh. 31 - Prob. 12TYKCh. 31 - Discuss Concepts What are the relative advantages...Ch. 31 - Prob. 14TYKCh. 31 - Prob. 15TYKCh. 31 - Prob. 16TYKCh. 31 - Prob. 1ITD
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- Why are “reptiles,” as traditionally defined, a paraphyletic group? How has cladistic taxonomy revised Reptilia to make it monophyletic?arrow_forwardHow can we understand the evolutionary relationships among animals, and how, in turn,can we understand the biological traits that have given rise to such great diversity on a few branches of the animal tree of life?arrow_forwardWhat are the hypotheses used to trace early evolution of animals?arrow_forward
- Segmentation has evolved several times and occurs in most animal supergroups. What advantages do segmented taxa have over their unsegmented relatives?arrow_forwardCite specific examples of how data from molecular systematics have confirmed or modified traditional animal phylogeny and identify the three major clades of bilateral animals.arrow_forwardWhich well-known group is ancestral to all living birds? What evidence in the fossil record supports this conclusion?arrow_forward
- What is the semantic web of two major classification of animalsarrow_forwardWhich phyla did you not expect to be grouped together based on their morphology? How could morphological data alone lead biologists to group animals into erroneous evolutionary relationships?arrow_forwardAside from skeletal structural similarities, what other commonalities among organisms might be considered homologous?arrow_forward
- Amphioxus long has been of interest to zoologists searching for a vertebrate ancestor. Explain why amphioxus captured such interest and how it is different from the hypothesized most recent common ancestor of all vertebrates.arrow_forwardWhich of the following taxa of fish shared most direct common ancestry with the group of animals that evolved into the terrestrial tetrapods? -Subclass Elasmobranchii -Class Neopterygii -Subclass Sarcopterygii -Class Actinopterygii -Class Chondrichthyesarrow_forwardBased on phylogeny and history of evolution, do new anatomical features such as lungs (amphibians) arise de novo or came from pre-existing structures of their ancestors (like gills of fish)? Explain.arrow_forward
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