Evidence for Evolution

What is the definition of natural selection?

• Genes that are chosen by humans such as farmers and ranchers
• Organisms that are chosen by environmental pressures such as climate, available food, predators and habitat.
• Dogs and Wolves
• Genes that are chosen by scientist and academics. 

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How are new traits introduced into a population?

• Photosynthesis
• Cell Membrane
• Turtles 
• Mutations 

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What organisms only survive in the wild (Nature)?

• Handicap Organisms 
• White Mouse
• Only Fit organisms 
• Organisms that cannot adapt

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Adaptations can...

• be helpful.
• be harmful.
• have no effect.
• All the above

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Artificial selection is...

• the process by which humans select who lives and dies based on traits of animal or plant.
• the process by which natures selects who lives and dies.
• the process by which animals adapt to their surroundings.
• the process by which people take over ecosystems.

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In artificial selection, the main goal is...

• surviving.
• producing the best plant or animal.
• playing the role of nature.

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Structures with the same parts have different functions; suggests that organisms share a common ancestry

• vestigial structures
• homologous structures
• adaptive radiation
• fossil

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If an organism has a vestigial structure, that structure likely once had a function in a(n)

• close relative
• early ancestor
• unrelated organism
• embryological stage

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The process by which populations slowly change over time is called__________

• selective breeding
• adaptation
• sepeciation
• evolution

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Study of embryos of various organisms to show a common ancestor because of similarities in development

• natural selection
• embryology
• speciation
• evolution

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