CAMPBELL BIOLOGY IN FOCUS-MOD.MASTERING
3rd Edition
ISBN: 9780135191811
Author: Urry
Publisher: PEARSON
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Textbook Question
Chapter 19, Problem 7TYU
FOCUS ON EVOLUTION
Explain why anatomical and molecular features often fit a similar nested patter. In addition, describe a process that can cause this not to be the case.
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Scientists make use of several parameters in order to determine and analyze evolutionary
relationships that exist among living organisms. These parameters are also derived from the
concrete pieces of evidence of evolution. To summ arize the valuable ideas in this module, make
a conceptual table that can simply and clearly present the importance of these parameters in
identifying the underpinning evolutionary relationships among organisms. Complete the following
table below.
PARAMETERS
MECHANISMS
BESTEXAMPLE
. Structure and function is a central theme to the study of biology. Each major group of
organisms has evolved its own body part “tool kit" – a collection of structures that have
evolved in ways that make specific functions possible. From capturing food to digesting
it, and from reproducing to breathing, organisms use structures that have evolved into
different forms as species have adapted to life in different environments. The structure
of wings, for example enable birds and insects to fly. The structures of legs enable
horses to gallop and kangaroos to hop.
a. Think about your own teeth. What kinds of foods do you think human teeth are
suited for?
b. List at least three ways the structure of human teeth serves the function of
eating these food materials.
c. Now, finally apply the theme of structure and function to something you're very
familiar with - your hands. List out all the ways you can think of that the
structure of your hands serve the function of your hands.
Species
Embryo (A-F)
Describe the Anatomical
Changes from Early to Late
Stages
Human
Chicken
Rabbit
Tortoise
Salamander
В
Fish
A
Guide Questions:
1. Look again at the six embryos in their earliest stages. Describe the patterns you see. What physical
similarities exist between each of the embryos?
2. Does this suggest an evolutionary relationship? Explain how these embryos can be used as evidence of
a common ancestor between each of these six organisms.
Chapter 19 Solutions
CAMPBELL BIOLOGY IN FOCUS-MOD.MASTERING
Ch. 19.1 - How did Huttons and Lyells ideas influence Darwins...Ch. 19.1 - MAKE CONNECTIONS Scientific hypotheses must be...Ch. 19.2 - How does the concept of descent with modification...Ch. 19.2 - Prob. 2CCCh. 19.2 - MAKE CONNECTIONS Review the relationship between...Ch. 19.3 - Explain how the following statement is inaccurate:...Ch. 19.3 - How does evolution account for (a) the similar...Ch. 19.3 - WHAT IF? Fossils show that dinosaurs originated...Ch. 19 - Which of the following is not an observation or...Ch. 19 - Which of the following observations helped Darwin...
Ch. 19 - Prob. 3TYUCh. 19 - The upper forelimbs of humans and bats have fairly...Ch. 19 - DNA sequences In many human genes are very similar...Ch. 19 - SCIENTIFIC INQUIRY DRAW IT Mosquitoes resistant to...Ch. 19 - FOCUS ON EVOLUTION Explain why anatomical and...Ch. 19 - FOCUS ON INTERACTIONS Write a short essay (about...Ch. 19 - SYNTHESIZE YOUR KNOWLEDGE This honeypot ant (genus...
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