Transcript Slide 1
Chapter 15 Section 3 Evolution in Action
Objectives
Describe
how convergent evolution can result among different species.
Explain
how divergent evolution can lead to species diversity.
Compare
artificial selection and natural selection.
Explain
how organisms can undergo coevolution.
Section 3 Evolution in Action Chapter 15
Case Study: Caribbean Anole Lizards Ongoing examples of evolution among living organisms can be observed, recorded, and tested.
In
convergent evolution,
organisms that are not closely related resemble each other because they have responded to similar environments.
Section 3 Evolution in Action Chapter 15
Case Study: Caribbean Anole Lizards,
continued
Divergence and Radiation
In
divergent evolution,
related populations become less similar as they respond to different environments.
Adaptive radiation
evolution of a single group of organisms in a new environment.
is the divergent
Section 3 Evolution in Action Chapter 15 Natural Selection of Anole Lizard Species
Section 3 Evolution in Action Chapter 15
Artificial Selection The great variety of dog breeds is an example of
artificial selection.
Section 3 Evolution in Action Chapter 15
Coevolution The increasing occurrence of antibiotic resistance among bacteria is an example of
coevolution
in progress.
Chapter Standardized Test Prep 15
Multiple Choice 1. What is the term for the idea that geologic processes occurring now on Earth are much the same as those that occurred long ago?
A. catastrophism B. uniformitarianism C. adaptive radiation D. convergent evolution
Standardized Test Prep Chapter 15
Multiple Choice,
continued
1. What is the term for the idea that geologic processes occurring now on Earth are much the same as those that occurred long ago?
A. catastrophism B. uniformitarianism C. adaptive radiation D. convergent evolution
Standardized Test Prep Chapter 15
Multiple Choice,
continued
2. What is the term for the biological process by which the kinds of organisms on Earth change over time?
F. evolution G. superposition H. biogeography J. uniformitarianism
Standardized Test Prep Chapter 15
Multiple Choice,
continued
2. What is the term for the biological process by which the kinds of organisms on Earth change over time?
F. evolution G. superposition H. biogeography J. uniformitarianism
Standardized Test Prep Chapter 15
Multiple Choice,
continued
3. When the internal structures of two species are very similar, what can be inferred about both species?
A. They share similar environments.
B. They evolved in similar environments.
C. They have similar external structures.
D. They evolved from a common ancestor.
Standardized Test Prep Chapter 15
Multiple Choice,
continued
3. When the internal structures of two species are very similar, what can be inferred about both species?
A. They share similar environments.
B. They evolved in similar environments.
C. They have similar external structures.
D. They evolved from a common ancestor.
Standardized Test Prep Chapter 15
Multiple Choice,
continued
5. vestigial : functional :: vacated : A. used B. visceral C. broken D. occupied
Standardized Test Prep Chapter 15
Multiple Choice,
continued
5. vestigial : functional :: vacated : A. used B. visceral C. broken D. occupied