Patterns in the Fossil Record That Document the Existence, Diversity, and Extinction of Organisms and Their Relationship

What are fossils?

• Rocks shaped like animals or plants

• The remains or impressions of ancient living organisms preserved in rock

• Modern animals that look like ancient species

• Imaginary creatures from stories

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How do fossils help scientists understand the history of life on Earth?

• By showing what the Earth's surface used to look like

• By providing evidence of species that no longer exist

• By illustrating how climate has changed over time

• All of the above

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Why are fossils important for understanding evolution?

• They show direct ancestors of modern animals

• They provide evidence of species changing over time

• They are the most valuable fossils

• They are the largest fossils

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How does comparing ancient and modern species help prove the theory of evolution?

• It shows that ancient species are exactly the same as modern species

• It demonstrates how species have adapted to their environments over time

• It proves that ancient species were more advanced

• It shows that modern species are less diverse

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What does the term "extinct" mean?

• A species that is very common

• A species that no longer exists

• A species that has evolved into a new species

• A species that is endangered

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Why is the fossil record incomplete?

• Not all organisms fossilize well

• Many fossils have yet to be discovered

• Some fossils are destroyed by natural processes

• All of the above

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What type of rock are fossils most commonly found in?

• Igneous

• Metamorphic

• Sedimentary

• Limestone

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What can scientists learn from studying the layers of rock where fossils are found?

• The age of the Earth

• When life forms existed at different times

• How to make rocks

• The names of all the dinosaurs

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What role do fossils play in the study of evolution?

• They are only used for decoration

• They provide direct evidence of how species have changed over time

• They show that evolution does not happen

• They are not important for understanding evolution

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Why might a scientist compare the bone structure of a dinosaur fossil to that of a modern bird?

• To prove that birds are not related to dinosaurs

• To find out what color the dinosaur was

• To understand how flight might have evolved

• To make a new type of bird

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