Early Evolution

a process by which modern organisms have descended from ancient organisms

• species

• evolution

• fossil

• adaptation

• scientific theory

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What two important ideas did Lamarck contribute to science?

• evolution happens in small, gradual steps

• simple organisms can develop (through several generations) into more complex organisms

• species change over many generations to become better adapted to new conditions

• organisms that move to a different location will slowly adapt/evolve to better survive that new location

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NGSS.MS-LS4-2

What two important ideas did Darwin contribute to science?

• evolution happens in small, gradual steps

• simple organisms can develop (through several generations) into more complex organisms

• species change over many generations to become better adapted to new conditions

• organisms that move to a different location will slowly adapt/evolve to better survive that new location

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How do fossils provide evidence that evolution has happened on Earth?

• Fossils show how the sizes of certain animals has changed drastically over millions of years

• Fossils show that some species have gone extinct

• Fossils show how life forms present today are different than those from the past

• Different sedimentary rock layers provide evidence for how the environment has changed over time

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Which of the following is a key piece of evidence for human evolution?

• Ancient cave paintings

• Stone tools

• Fossilised human bones

• Old maps

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Which of the following correctly summarizes the physical changes that early humans went through over the past million years or so?

• Brain size increased as jaw size decreased

• Brain size decreased as jaw size increased

• Bipedalism increased as use of tools increased

• Bipedalism decreased as the use of tools increased

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Which of the following is NOT a unique trait that evolved in humans?

• Bipedalism

• A large cranium

• Canine Teeth

• Use of tools

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Which scientist visited the Galapagos Islands and came up with the theory of natural selection?

• Theodor Schwann

• Gregor Mendel

• Charles Darwin

• Rudolf Virchow

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Although Jean-Baptiste Lamarck's theory of transformation proved to be incorrect, he contributed some important ideas to the study of evolution. Which of the following statements are Lamarck's ideas?

• Evolution takes place by small, gradual steps.

• Some organisms lived in ancient times, but they no longer exist today.

• Processes that made land features in the past are still in action today.

• Simple organisms can develop into more complex organisms over many generations.

What does Darwin's theory of evolution suggest?

• species change over time

• extinct species are not related to living species

• different species can interbreed

• animals that look alike are most closely related

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