Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Textbook Question
Chapter 23, Problem 5TYU
A swim bladder is a gas-filled sac that helps fish maintain buoyancy. The evolution of the swim bladder from the air-breathing organ (a simple lung) of an ancestral fish is an example of
- A. exaptation.
- B. changes in Hox gene expression.
- C. paedomorphosis.
- D. adaptive radiation.
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Check out a sample textbook solutionStudents have asked these similar questions
Which of the following features does not distinguish humans as a member of phylum Chordata? a. Human embryos undergo indeterminate cleavage. b. A spinal cord runs along an adult human’s dorsal side. c. Human embryos exhibit pharyngeal arches and gill slits. d. The human coccyx forms from an embryonic tail.
A. According to Gould and Vrba (1982), when the original cooling function of insect appendages was changed to flying, this is an example of
a.
inheritance.
b.
exaptation.
c.
apatation.
d.
adaptation.
B. When primates first evolved away from their mammalian ancestors, they
a.
developed a larger and more complex brain.
b.
increased their reliance on the sense of smell.
c.
increased the number of canines (for meat-eating).
d.
all of the above
Which of the following statements is FALSE?
a. Only vertebrates possess HOX genes.
b. HOX genes are transcription factors.
c. Hox genes are very highly conserved in the genome location and function among organims.
d. HOX genes are activated in a very predictable pattern.
Chapter 23 Solutions
Campbell Biology in Focus
Ch. 23.1 - Describe an example from the fossil record that...Ch. 23.1 - Your measurements indicate that a fossilized skull...Ch. 23.1 - WHAT IF? What might a fossil record of life today...Ch. 23.2 - Explain the consequences of plate tectonics for...Ch. 23.2 - Prob. 2CCCh. 23.2 - What factors promote adaptive radiations?Ch. 23.2 - Prob. 4CCCh. 23.3 - Explain how new body forms can originate by...Ch. 23.3 - Why is it likely that Hox genes have played a...Ch. 23.3 - MAKE CONNECTIONS Given that changes in morphology...
Ch. 23.4 - How can the Darwinian concept of descent with...Ch. 23.4 - Prob. 2CCCh. 23 - Which factor most likely caused animals and plants...Ch. 23 - Adaptive radiations can be a direct consequence of...Ch. 23 - A researcher discovers a fossil of what appears to...Ch. 23 - A genetic change that caused a certain Hox gene to...Ch. 23 - A swim bladder is a gas-filled sac that helps fish...Ch. 23 - SCIENTIFIC INQUIRY Herbivory (plant eating) has...Ch. 23 - FOCUS ON EVOLUTION Describe how gene flow, genetic...Ch. 23 - FOCUS ON ORGANIZATION You have seen many examples...Ch. 23 - SYNTHESIZE YOUR KNOWLEDGE In 2010, the Soufriere...
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