Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Textbook Question
Chapter 22, Problem 9TYK
What might you conclude from the observation that the bones in your arm and hand are similar to the bones that make up a bat’s wing?
- a. The bones in the bat’s wing are vestigial structures, no longer useful as “arm” bones.
- b. The bones in a bat’s wing are homologous to your arm and hand bones.
- c. Bats lost their opposable digits during the course of evolution.
- d. Our ancestors could fly.
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Students have asked these similar questions
The similarities between the bone structure of a human hand and a cats paw suggest what?
a. a common evolutionary ancestor
b. Humans are actually kitty cats
c. nothing
d. similar biological function
Why can’t scientists just do DNA analysis on these fossil hominins to determine if they are a separate species and possibly what species they belong to?
A.
The DNA of fossil hominins is too similar to modern humans, making it difficult to distinguish between them.
B.
The technology for extracting DNA from fossils hasn't been developed yet.
C.
The fossils would need to be in a -5 degree Celsius environment to prevent DNA from degrading
D.
Scientists can't perform DNA analysis on fossil hominins because the fossils have been contaminated with modern human DNA over the years, making it impossible to isolate the ancient genetic material.
According to "Our Earliest Ancestors", why can’t scientists just do DNA analysis on these fossil hominins to determine if they are a separate species and possibly what species they belong to?
A.The fossils would need to be in a -5 degree Celsius environment to prevent DNA from degrading
B.The DNA of fossil hominins is too similar to modern humans, making it difficult to distinguish between them.
C.Scientists can't perform DNA analysis on fossil hominins because the fossils have been contaminated with modern human DNA over the years, making it impossible to isolate the ancient genetic material.
D.The technology for extracting DNA from fossils hasn't been developed yet
Chapter 22 Solutions
Study Guide for Campbell Biology
Ch. 22 - a. Write the capital letter representing the...Ch. 22 - List the two observations from which Darwin drew...Ch. 22 - a. Explain how the rapid evolution of drug...Ch. 22 - Complete the following concept map that summarizes...Ch. 22 - Explain in your own words the main components of...Ch. 22 - Briefly explain the following statement: In...Ch. 22 - Which of the following slogans best describes the...Ch. 22 - Which of the following scientists proposed that...Ch. 22 - Darwin proposed that new species evolve from...Ch. 22 - Each of the following influenced Darwin as he...
Ch. 22 - Darwins publication of On the Origin of Species...Ch. 22 - The smallest unit that can evolve is a(n) a....Ch. 22 - Which of the following statements is not...Ch. 22 - Darwin observed that organisms are capable of...Ch. 22 - What might you conclude from the observation that...Ch. 22 - The remnants of pelvic and leg bones in a snake a....Ch. 22 - The hypothesis that whales evolved from...Ch. 22 - Which of the following sources of evidence...Ch. 22 - When cytochrome c molecules are compared, yeasts...Ch. 22 - Which of the following is an example of convergent...Ch. 22 - Prob. 15TYKCh. 22 - Use the following evolutionary tree representing...Ch. 22 - Evolution by natural selection would be impossible...
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