Evolution

Which scientist developed the modern Theory of Evolution?

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The diagram shows developing embryos of some different vertebrate animals. At their early stages of development, why do these embryos look so similar with tails and buds?

• they are all extinct

• they all evolved from a common ancestor

• they all have the same DNA

• they are all mutated

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Look at the picture. What do these similar anatomical structures represent?

• vestigial structures

• embryology

• homologous structures

• fossil record

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Which rock layer would have the oldest fossils?

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Darwin explained that in Natural Selection, organisms with traits that are best suited to their environment will ​ (a)   and ​ (b)   more often.

• become extinct

• never reproduce

• lose all their traits

• survive
• reproduce

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What does this definition refer to?

"The process by which individuals with traits better suited to their environment will survive and reproduce more often".

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Which species' DNA is most similar to the DNA of the toothed whale? 

• Hippopotamus 
• Baleen Whale
• Grazing Mammals
• Camels

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Which point on the diagram represents the ancestor of Species A, B, and C? (Choose one answer)

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Which point on the diagram represents the oldest ancestor of all Species A - H? (Choose one answer)

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Organisms that are closely related and evolved from a common ancestor would have:

• similar DNA sequences

• exactly identical DNA sequences

• no proteins in common
• completely different DNA sequence

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