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Where the better adapted organisms survive to pass traits along to offspring.

• Evolution
• Natural Selection
• Extinction
• Artifical Selection

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A certain type of plant can produce blue or yellow flowers. During a fire, many yellow flowers are destroyed and now since blue is the dominant trait, the plant reproduces offspring that produce only blue flowers.

• Non-Random Mating

• Gene Flow

• Mutation

• Genetic Drift

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In a habitat there are red bugs and green bugs. The birds prefer the taste of the red bugs, so soon there are many green bugs and few red bugs. The green bugs reproduce and make more green bugs and eventually there are no more red bugs

• Genetic Drift

• Natural Selection

• Gene Flow

• Mutation

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A reintroduced population of wolves in a national park is 90 percent grey and 10 percent black, consistent with the wolf population in other regions. After several generations in isolation, the national park’s wolf population is 60 percent grey and 40 percent black. The wolf population has likely experienced

• natural selection

• genetic drift

• mutations

• migration

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Alleles that improve survival will decrease in frequency in the next generation.

• True

• False

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An inherited trait that is selected for over time because it allows organisms to better survive in their environment

• Equilibrium

• Homeostasis

• Active Transport

• Adaptation

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Why are advantageous traits more likely to be passed onto offspring?

• Because they are more likely to survive and reproduce.

• Because they come from dominant alleles.

• Because they come from recessive alleles.

• Because the organism knew it needed that trait, survives, and passes it on.

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Adaptations that result from natural selection are expected to increase the fitness of an organism. In terms of natural selection, what is fitness?

• being able to escape from predators

• being among the strongest organisms in a population

• being able to survive, find a mate, and produce offspring

• being able to survive long enough to reach an adult age

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What is a change in an organism that allows for it to survive in its environment?

• homologous

• vestigial

• variation

• adaptation

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I am a polar bear who lives in the arctic. My fur is a beautiful white, just like the snow I live in. What adaptation is this adaptation called?

• camouflage

• mimicry

• migration

• hibernation

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