Evolution I

What species did Darwin look at the beaks of to study differences between closely related species?

• Galapagos Finches
• Galapagos Tortoises 
• Galapagos Sea Iguanas 
• Galapagos Mice 

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An adaptation is anything that 

• allows an organism to survive in its environment to reproduce
• changes an animal due to environmental circumstances 
• an animal can consciously do to have a better chance to survive
• is preserved in the fossil record

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Lamarck had the idea that things changed over time, but was wrong because

• he did not have evidence for his claim at the time
• he believed that humans selected the favorable traits instead of nature 
• he believed that traits could be acquired out of want or need and then be passed down 
• he altered his theory to align what the people thought at the time 

Why do dogs with clipped tails not have puppies with clipped tails?

• acquired characteristics are not passed down because the DNA is the same
• this is actually false. if you cut the tail off of an animal its offspring will also have short tails
• there is no way to know for sure yet
• natural selection

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When people selectively breed their fastest horses together this is an example of

• natural selection
• artificial selection
• stabilizing selection
• disruptive selection

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What is evolution?

• change in a population or species over time
• an explanation for the origin of life
• an explanation for the origin of the universe
• just a theory that hasn't been proven to be true

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Camouflage and mimicry can best be explained by 

• artificial selection
• natural selection
• stabilizing selection
• disruptive selection

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The presence of the appendix in humans is an example of

• an analogous structure that suggests convergent evolution
• a homologous structure that suggest common ancestry
• a vestigial organ that no longer serves its original purpose
• artificial selection

The fins of a dolphin (mammal) and tuna (fish) are

• homologous structures
• analogous structures
• vestigial structure
• embryonic development differences

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The fact that all four-limbed mammals have the exact same bones arranged in a similar fashion is an example of

• homologous structures (common ancestor)
• analogous structures (no recent common ancestor)
• vestigial structures (the bones are no longer used or needed)
• none of these

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