Loose Leaf For Integrated Principles Of Zoology
18th Edition
ISBN: 9781260411140
Author: Cleveland P Hickman Jr. Emeritus, Susan L. Keen, David J Eisenhour Professor PhD, Allan Larson, Helen I'Anson Associate Professor of Biology
Publisher: McGraw-Hill Education
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Chapter 20, Problem 12RQ
Explain why remipedians were once thought to resemble ancestral crustaceans.
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Describe how paedomorphosis as a mechanism could explain the evolution of the chordate body plan (from echinoderm larval form to a craniate form).
Describe the adaptations of crustaceans in aquatic habitats seen in the Crustacea.
Chordates are grouped with starfish because both are protostomes,
true or false?
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Loose Leaf For Integrated Principles Of Zoology
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- Describe the forams and actinopods, and explain why many biologists classify them in the rhizarian supergroup.arrow_forwardMembers of Chondrichthyes differ from members of Osteichthyes by having a _______. a. jaw b. bony skeleton c. cartilaginous skeleton d. two sets of paired finsarrow_forwardSessile adult tunicates lose the notochord; what does this suggest about one function of this structure?arrow_forward
- Explain why it is necessary to know the life history of a tunicate to understand why tunicates are chordates.arrow_forwardexplain why the four synapomorphic traits of chordates are not synaphomorphic in the context of amniotes.arrow_forwardwrites a paragraph that describe the different types of evidence for the fact that tetropods evolved from fish.arrow_forward
- indicate in a short text : Adaptations to predation in cuttlefish (and by extension in cephalopods)arrow_forwardDescribe four different uses for thoracic appendages seen in different crustaceans. Use specific examples (name the corresponding taxonomic group). Relate the morphology of the appendage to its function.arrow_forwardIt can be argued that all tetrapods are a variation of fish. Explain how this could be true.arrow_forward
- If members of a group, such as chordates , evolved from a common ancestor then they should show similarities in structure, which supports this hypothesis?arrow_forwardPost-anal tail is a unique feature shared by invertabrates and jawless fish chordates tetrapods all invertarrow_forwardExplain why echinoderms and chordates are nowconsidered to be closely related.arrow_forward
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