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When we compare amino acid differences to estimate the evolutionary "distance" between organisms, what assumptions are being made about the rate at which mutations occur over time?

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The assumption is that the protein has a...

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Linnaeus developed his classification system for organisms according to


A) a theory of descent by modification.
B) Darwin's theory of evolution.
C) Lamarck's theory of evolution.
D) a theory of special creation and fixity of species.

E) A) and B)
F) A) and C)

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A line of evidence NOT considered by Darwin in his development of the theory of natural selection is


A) comparative anatomy.
B) biogeography.
C) the fossil record.
D) comparative biochemistry.

E) A) and B)
F) A) and C)

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D

During a break at work you and a coworker begin discussing the topic of evolution. He indicates that he does not believe in evolution because it is just a theory about how life originated and this is in direct conflict with the beliefs he was taught during his childhood. How would you convince him that evolution is factual?

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Answers may vary but should include some variation of the following points: 1. You should explain to him that a theory in science is something that has data to support it. Theory is not a guess in the scientific context. 2. You should explain that evolution does not try to explain how life originated. Evolution explains how the diversity of life emerged after the origin of life. 3. Scientists are still trying to determine how life originated but that is a totally separate question from evolution.

What is the main reason that the alternative explanations to evolution are not considered scientific?


A) The alternative explanations are not testable by the scientific method.
B) The people suggesting the alternative explanations are not scientists.
C) The scientific community is biased and will not look at any other explanation.
D) All of these are reasons why the alternative explanations are not considered scientific.

E) A) and B)
F) C) and D)

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What evidence would be studied by a biogeographer?


A) plate tectonics
B) amount of genetic similarity among current populations
C) ocean currents and wind patterns
D) ranges and migration patterns of animals
E) All of the choices are correct.

F) B) and C)
G) C) and D)

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Once exposed to an antibiotic drug, bacteria will develop a resistance in order to survive and then pass the resistance onto subsequent generations. This is an example of Lamark's idea of the inheritance of acquired characteristics.

A) True
B) False

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Marsupials are more numerous in Australia than South America because of less competition with placental mammals.

A) True
B) False

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Why are comparing Patagonian hares to European hares or manatees to penguins, excellent examples of adaptation?

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Answers may vary. Patagonian hares are unrelated to European hares, although they are sometimes described as "long-legged rabbits." Although the Patagonian hare is a large rodent related to guinea pigs, it shares many of the features and behaviors of rabbits. These unrelated organisms have adapted to similar environments and therefore share similar traits. The same is true for manatees and penguins, which are unrelated. Both have adapted to an aqueous environment by developing flippers which help them to move through the water.

Erasmus Darwin, in his discussion of evolutionary possibilities, included all of the following EXCEPT


A) changes during the development of organisms.
B) comparative anatomy of plants and algae.
C) vestigial organs.
D) artificial selection in animal breeding.

E) A) and B)
F) None of the above

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During the course of Darwin's journey aboard the H.M.S. Beagle he was collecting and recording ________ and __________.


A) biological; genetic evidence
B) religious; political evidence
C) historical; biological evidence
D) fossils; geological evidence
E) geological; biological diversity evidence

F) A) and E)
G) A) and D)

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Two fossilized remains are found and scientists assume the two organisms are different but related. Which of the following would determine the relatedness of these two organisms?


A) homologous structures
B) vestigial structures
C) biogeography
D) All of the choices could be examined to determine relatedness.

E) C) and D)
F) All of the above

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Fossils are the remains and traces of past life that have been preserved in the Earth's crust. What type of fossils is most important in supporting the principle of evolution? Explain your answer and give examples.

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Transitional fossils are important evide...

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Who was the author of the book Principles of Geology? The book presented arguments to support a theory of geological change, proposing that the earth was subject to slow but continuous erosion and uplift.


A) Leclerc
B) Lamarck
C) Cuvier
D) Lyell

E) A) and B)
F) A) and C)

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Darwin observed that


A) members of a population vary in their functional, physical and behavioral characteristics.
B) there is a constant struggle for survival of organisms.
C) organisms in a normal population differ in reproductive success.
D) All of the choices are correct.
E) None of the choices are correct.

F) B) and E)
G) A) and E)

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When previous adaptations in a species are no longer useful in a changed environment,


A) selection of a different form occurs.
B) artificial selection is witnessed.
C) fitness is observed.
D) All of the choices are correct.

E) B) and C)
F) C) and D)

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Which of the following observations is not part of natural selection as posed by Darwin?


A) Individuals within a species exhibit variation.
B) Organisms compete for available resources.
C) Individuals within a population differ in terms of reproductive success.
D) Organisms become adapted to conditions as the environment changes.
E) All of these observations are part of natural selection as posed by Darwin.

F) A) and B)
G) A) and C)

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The oldest mammals were large, dinosaur-like creatures that flourished over 600 million years ago.

A) True
B) False

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Fossils like Archaeopteryx offer evidence linking


A) reptiles and mammals.
B) fish and amphibians.
C) birds and mammals.
D) birds and dinosaurs.
E) amphibians and reptiles.

F) A) and D)
G) A) and C)

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Over many generations man has chosen certain desirable characteristics in dogs by allowing dogs possessing those characteristics to reproduce. In this way, 150 breeds of dogs, all in the same species, have descended from wolves. This process is referred to as


A) natural selection.
B) inheritance of acquired traits.
C) artificial selection.
D) convergent evolution.

E) B) and C)
F) C) and D)

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