Natural Selection, Fossils, Evolution 202

What are the oldest fossils and why?

• B, C- because they are closest to the top

• A, B- because they are closest to the bottom

• They are all the same age- because they are all found on layer 2

• A, B- because they are found closest to the top

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Which layer formed first?

• Rock Layer W
• Rock Layer X
• Rock Layer Y
• Rock Layer Z

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According to the law of superposition, which layer is the youngest?

• A
• B
• C

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In which kind of rock do we usually find a fossil?

• sedimentary rock

• metamorphic rock

• igneous rock

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If scientists found this fossil, what could they infer?

• what fish are like today

• that this fish lacked oxygen

• that water once covered the area where this fossil was found

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Organisms with traits that allow them to survive can reproduce and pass those advantageous traits to offspring is known as_________

• Evolution
• Natural Selection
• Extinction
• Artifical Selection

"Survival of the Fittest" describes which theory

• a) natural selection
• b) gravity
• c) heredity
• d) string theory

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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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Any inherited trait that gives an organism an advantage in its environment is called ___.

• a mutation
• an adaptation
• evolution
• natural selection

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The trees these moths used to live on were white, but have been covered in soot from coal factories. Which moth will be more successful in this environment?

• Dark moth
• Light moth
• Both will be equally successful
• Neither will be successful

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