Chapter 3: Selection and Speciation

Behavioral changes of individuals of a species that allow for better survival. (Acquired traits)

• Variation

• Adaptation

• Behavior

• Environment

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What is the advantage of having different shaped beaks?

• To look different from other species.

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• 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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Which of the following best illustrates natural selection?

• An organism with favorable genetic variations will tend to survive and breed successfully.

• A population monopolizes all of the resources in its habitat, forcing other species to migrate.

• A community whose members work together utilizing all existing resources and migratory routes

• The largest organisms in a species receive the only breeding opportunities.

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Which of the following statements best describes what will most likely occur to the moth populations in the image above?

• The light moths will be captured by predators more easily than the dark moths, and the population of dark moths will rise.

• The light moths will be captured by predators more easily than the dark moths, and the population of light moths will rise.

• The dark moths will be captured by predators more easily than the light moths, and the dark moths will probably go extinct.

• The light moths will change their wing color to match that of the dark moths.

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The differences among a species, like different bird beaks, are called

• genes.

• variations.

• traits.

• theories.

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Organisms that are better adapted to the environment survive to pass traits to their offspring" is the definition of

• Natural Selection

• Evolution

• Selective Breeding

• Artificial Selection

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Which organisms are most likely to survive?

• the best adapted

• the fastest

• the strongest

• the most domesticated (tamed)

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Domesticated dogs are an example of:

answer choices

• Natural Selection

• Selective Breeding

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Artificial selection has been a big factor in the evolution of:

• Dogs

• Panda bears

• Snakes

• Jellyfish

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Which statement is true comparing natural selection and artificial selection?

• In natural selection, traits benefit humans and in artificial selection, the traits benefit the species

• In natural selection, traits benefit the species and in artificial selection, the traits benefit humans

• In natural and artificial selection, the process takes hundreds of years to occur

• In natural and artificial selection, nature determines what traits will be passed down to offspring.

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