Evolution

The law of superposition states

• the oldest rock layer is on the top, the younger rock layer is on the bottom

• rock layers are always in sequence from oldest to youngest

• the youngest rock layer is on the bottom and the oldest is on the top

• the oldest layer is on the bottom and the youngest is on the top when it is undisturbed

Scientist find dinosaur fossils in the bottom of a cliff and mammals fossils in the middle layer, what can be inferred?

• dinosaurs ate plants
• dinosaurs were eaten by the mammals
• they lived at the same time
• dinosaurs lived before the mammals

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Ostrich wings are examples of

• homologous structures
• vestigial structures
• adaptations
• traits

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Dolphins have the same arm structure as wolfs, what type of evidence for evolution does this represent?

• DNA
• vestigial structures
• homologous structures
• embryology

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Change over time is

• evolution
• generation
• growth
• biogenesis

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What animal is Darwin known for studying?

• dinosaurs
• tunicates
• finches
• horses

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This makes an organism more suited to its enviornment

• species
• lifespan
• adaptation
• mutation

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Who was Charles Darwin?

• A naturalist who came up with the theory of evolution
• A scientist who studied plants
• A geologist who looked at rocks and fossils
• A paleontologist who studied dinosaurs

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Charles Darwin came up with this theory 

• Natural Selection
• Mutation

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Darwin wrote that organisms with traits that are best suited to the environment will ________________

• increase in number
  
• become extinct
  

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