Evolution: Artificial and Natural Selection

Another name for natural selection is...

• hybridization

• bottleneck effect

• inheritable variation

• survival of the fittest

What is an example of natural selection?

• tortoise population that eats tall cacti develops longer necks over time

• a dog breed becomes smaller because of human demand

• a white moth is predated on a dark tree

• a population of trees is killed by a large flood

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Which is an example of an adaptation?

• A group of rabbits have thick fur to stay warm in the winter

• A group of moths have darker wing colors to blend in to the trees

• A bird has a long thin beak to eat insects on cacti

• All of these are correct

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A trait that allows some organisms to survive while others do not is a/an...

• evolution

• mutation

• adaptation

• inheritable trait

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Darwin theorized that organisms with traits that are best suited to their environment will ________________

• increase in number

• become extinct

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True or false: A change in the environment can affect an organism’s ability to survive, and may therefore lead to natural selection.

• True

• False

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Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest.

• Extinction

• Speciation

• Natural Selection

• Artificial Selection

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What is the advantage of Darwin's finches having different shaped beaks?

• To look different from other species.

• To be able to eat the food readily available in the environment.

• To protect itself against predators.

• To protect itself against prey.

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What is another name for natural selection?

• survival of the smartest

• survival of the fastest

• survival of the biggest

• survival of the fittest

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Predict which moth would be expected to increase in population

• light

• dark

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