Unit 1: Evidence of a Common Ancestor

What are fossils and where are they found?

• Fossils are living organisms found in oceans.

• Fossils are the preserved remains or traces of living things usually found in sedimentary rock.

• Fossils are rocks that form in volcanic areas.

• Fossils are the remains of plants found in forests.

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What is the difference between trace and body fossils?

• Trace fossils are the actual preserved remains of organisms, while body fossils are imprints of behavior.

• Trace fossils are imprints or records of an animal's behavior, while body fossils are the actual preserved remains of organisms.

• Trace fossils are found in water, while body fossils are found on land.

• Trace fossils are made of bones, while body fossils are made of plants.

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What can fossils tell us about the past?

• Fossils can tell us about future climate conditions.

• Fossils can tell us when and where organisms existed, the species of the organism, and climate conditions.

• Fossils can tell us about the color of ancient plants.

• Fossils can tell us about the diet of modern animals.

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What is the difference between cast and mold fossils?

• A cast fossil is a hollow space, while a mold fossil is a filled shape.

• A cast fossil is the result of a mold, while a mold fossil is created when an organism is buried in sediment.

• A cast fossil is made of metal, while a mold fossil is made of rock.

• A cast fossil is found in water, while a mold fossil is found on land.

What percentage of living things become fossils?

• 10%

• 50%

• 0.01%

• 100%

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Who first suggested the Theory of Continental Drift?

• Charles Darwin

• Isaac Newton

• Alfred Wegener

• Albert Einstein

What is the process by which organisms change gradually over time?

• Mutation

• Evolution

• Extinction

• Adaptation

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According to the law of superposition, where are the oldest fossils found in an undisturbed rock sample?

• Top layers of rock

• Middle layers of rock

• Bottom layers of rock

• Randomly distributed

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What are the four main types of evidence for evolution?

• Fossils, Climate, Geography, DNA

• Fossils, Anatomy, Embryology, DNA

• Fossils, Anatomy, Geography, Climate

• Fossils, Embryology, Climate, DNA

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What is an index fossil used for?

• To determine the color of rocks

• To find the temperature of ancient climates

• To correlate rock layers and determine their age

• To measure the size of ancient organisms