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| 1.
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What are the steps in Darwin's theory of natural selection? 3.b
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| | A) | overproduction, variation, inherited variation, natural selection |
| | B) | adaptation, natural selection |
| | C) | overproduction, adaptation, evolution |
| | D) | adaptation, evolution |
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| 2.
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According to the theory of natural selection, organisms that are better adapted to an environment __________ than organisms that are not. 3.b
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| | A) | run faster |
| | B) | grow larger |
| | C) | survive and reproduce at a greater rate |
| | D) | are stronger |
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| 3.
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The thick skin of a cactus helps prevent water loss in the dry desert. This is an example of _________. 3.a
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| | A) | camouflage |
| | B) | structural adaptation |
| | C) | mimicry |
| | D) | behavioral adaptation |
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| 4.
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An insect on a branch looks like a small stick. This is an example of _______. 3.a
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| | A) | behavioral adaptation |
| | B) | mimicry |
| | C) | structural adaptation |
| | D) | camouflage |
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| 5.
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Change in inherited characteristics over time is called __________. 3.a
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| | A) | camouflage |
| | B) | species |
| | C) | fossils |
| | D) | evolution |
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| 6.
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Some birds fly to warmer climates when it gets cold. This is an example of _______. 3.a
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| | A) | camouflage |
| | B) | structural adaptation |
| | C) | mimicry |
| | D) | behavioral adaptation |
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| 7.
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What may a series of helpful variations in a species result in? 3.a
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| | A) | embryology |
| | B) | fossils |
| | C) | adaptation |
| | D) | climatic change |
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| 8.
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Unlike the extinction of dinosaurs, many extinctions that have taken place in the past 20 years probably have been caused by __________. 3.e
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| | A) | meteorites |
| | B) | human activities |
| | C) | volcanoes |
| | D) | dust and ash |
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| 9.
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Changes that occur in genes to form new traits in the next generation is __________. 3.a
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| | A) | genetic variation |
| | B) | environmental variation |
| | C) | natural variation |
| | D) | evolutionary variation |
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| 10.
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Darwin's controversial book on his ideas of evolution is called ________. 3.b
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| | A) | Evolution |
| | B) | The Origin of Species by Natural Selection |
| | C) | HMS Beagle |
| | D) | Galapagos Tortoises and Finches |
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| 11.
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__________ is the change in the genetics of a species over time. 3.a
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| | A) | Natural selection |
| | B) | Evolution |
| | C) | Heredity |
| | D) | Mutation |
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| 12.
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Which of the following is an example of Darwin's theory of evolution by natural selection? 3.b
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| | A) | Insects that blend into trees survive because they are not seen, and thus not eaten, by birds. |
| | B) | Giraffes that stretch their necks have necks that grow longer. |
| | C) | A breeder of cats specifically chooses cats to breed that have long, white fur. |
| | D) | Native Americans do not kill an albino animal because it is thought to be bad luck. |
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| 13.
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The many species of finches and tortoises Darwin observed on the Galapagos Islands are an example of __________. 3.b
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| | A) | selective breeding |
| | B) | adaptive radiation |
| | C) | extinction |
| | D) | phenotype variability |
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| 14.
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When the last individual of a species dies, __________ occurs. 3.e
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| | A) | mutation |
| | B) | natural selection |
| | C) | extinction |
| | D) | selective breeding |
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| 15.
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A variation that helps an organism be better suited for its environment is a(n) __________. 3.a
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| | A) | species |
| | B) | hypothesis |
| | C) | element |
| | D) | adaptation |
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| 16.
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What did Darwin conclude from the different species living in the Galapagos Islands? 3.b
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| | A) | Species evolve to survive in their environment. |
| | B) | Different species in the same environment are similar. |
| | C) | The environment changed allowing species to survive. |
| | D) | Species become extinct after awhile. |
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| 17.
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A mouse population develops an adaptation that results in white fur. They live in a forest with a population of hawks. Which of these statements is true? 3.a
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| | A) | The population of white mice will most likely increase. |
| | B) | The population of white mice will most likely stay the same. |
| | C) | The population of white mice will most likely decrease. |
| | D) | The population of hawks will most likely decrease. |
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| 18.
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A species that once was present on Earth but has died out is a(n) __________ species. 3.e
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| | A) | threatened |
| | B) | stable |
| | C) | endangered |
| | D) | extinct |
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| 19.
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Why is selective breeding used with dairy cattle, race horses, and many other animals? 3.a
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| | A) | to increase variations |
| | B) | to produce mutations |
| | C) | to reduce sexual reproduction |
| | D) | to continue desired traits |
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| 20.
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Which of the following is an example of how a new species can develop in nature? 3.b
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| | A) | A group becomes separated and they evolve until they cannot interbreed with the original population. |
| | B) | A dog breeder makes a new breed of dog that looks different from all the others. |
| | C) | A scientist in a laboratory develops a new species. |
| | D) | Two different species develop in such a way that they look the same. |
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