Campbell Biology in Focus; Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780134433776
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman
Publisher: PEARSON
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Chapter 33, Problem 9TYU
FOCUS ON EVOLUTION
The human esophagus and trachea share a passage leading from the mouth and nasal passages, which can cause problems. After reviewing vertebrate evolution (see Concept 21.4), explain how descent with modification explains this “imperfect” anatomy.
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The human esophagus and trachea share a passage leading from the mouth and nasal passages, which can cause problems. After reviewing vertebrate evolution in chapter 34, explain the evolutionary basis for this "imperfect" anatomy.
PART II. COMPARATIVE ANATOMY AND EMBRYOLOGY EVIDENCE
> Using the information in the Reading file part Il and textbook reading, answer the following
questions:
1. Whales possess vestigial organs in the form of pelvic girdle and hind limb bones. How would
you explain this?
Page 3 of 6
Evolution Lab Exercise Report (by Dr. Lapik)
2. How can you explain that, while forelimbs of bats and human arms are used for vastly different
purposes, they do have similar anatomy?
3. How would you explain the presence of gill slits in embryos of animals that do not form gills?
Jay Guide
The human embryo and the embryos of other animals with backbones have gill slits. According to the modern
evolutionary theory, this best supports the idea:
Mark only one oval.
That fish are our closest relatives
All embryos breathe through their gills
All animals with backbones are related by common ancestry
All organisms have gill slits at an early stage in their development
Chapter 33 Solutions
Campbell Biology in Focus; Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus (2nd Edition)
Ch. 33.1 - An animal requires 20 amino acids to make...Ch. 33.1 - Prob. 2CCCh. 33.1 - WHAT IF? if a zoo animal eating ample food shows...Ch. 33.2 - Prob. 1CCCh. 33.2 - In what sense are nutrients from a recently...Ch. 33.2 - Prob. 3CCCh. 33.3 - How does swallowed food reach the stomach of a...Ch. 33.3 - Explain why a proton pump inhibitor, such as the...Ch. 33.3 - Prob. 3CCCh. 33.4 - Prob. 1CC
Ch. 33.4 - Prob. 2CCCh. 33.4 - Prob. 3CCCh. 33.5 - Prob. 1CCCh. 33.5 - The energy required to maintain each gram of body...Ch. 33.5 - Prob. 3CCCh. 33 - The mammalian trachea and esophagus both connect...Ch. 33 - Which organ is incorrectly paired with its...Ch. 33 - Which of the following is not a major activity of...Ch. 33 - Prob. 4TYUCh. 33 - Prob. 5TYUCh. 33 - If you were to jog 1 km a few hours after lunch,...Ch. 33 - Prob. 7TYUCh. 33 - Prob. 8TYUCh. 33 - FOCUS ON EVOLUTION The human esophagus and trachea...Ch. 33 - Prob. 10TYUCh. 33 - Prob. 11TYU
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