Theory of Evolution by Natural Selection (pgs 14-25)

The process by which populations change over time is known as:

• adaptation

• natural selection

• evolution

• mutation

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On his voyage aboard the HMS Beagle to the Galapagos Islands, he collected specimen and fossils. His observations and data helped him form his theory about evolution.

• Gregor Mendel

• Reginald Punnett

• Francis Crick

• Charles Darwin

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One of Darwin's most important observations was the differences in beak shapes of the Galapagos finches. He concluded that:

• these finches evolved from one species of finch

• these finches were not related

• finches remain unchanged since the beginning of time

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Darwin hypothesized that organisms better suited are more likely going to SURVIVE, REPRODUCE AND PASS ON TRAITS.

• True

• False

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The name of Charles Darwin's theory on how living things evolve is known as:

• Survival of the Strongest

• Adaptations of the Awesomest

• Natural Selection

• Acquired Characteristics

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The 4 parts of natural selection are: Overproduction, Genetic Variation, Selection and__________________.

• Adaptation

• Extinction

• Fossil Record

• Heredity

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The hollow bones of a bird allows them to be lightweight for flying. A trait that allows a species to better survive is a(n):

• variation

• dominant trait

• adaptation

• extinction

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How does environmental change affect the survival of a species? Remember the story of the peppered moth.

• There are variations in a species (like wing color). Those with traits that are best suited will most likely survive and pass on those traits.

• Genetic variations, like wing color, do not help a species. Survival is based on luck.

• The environment seldom changes and therefore, has no effect on species survival.

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What might happen to this population? Infer or predict the traits of future generations.

• There will be more green beetles in the population.

• There will be more brown beetles in the population.

• There will be an equal amount of brown and green beetles in the population.

• None of these, since body color is not passed on.

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Acquired traits (like stretching your neck or a tattoo) are NOT passed on to the next generation, since they do NOT change your DNA.

• True

• False

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