Module 2 Review Geologic Time & Evolution

When the last individual of a species dies, that species is considered ____

• adapted

• rare

• extinct

• evolved

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Change in a population over time is called _____.

• conservation

• evolution

• extinction

• mutation

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What is the geologic time scale?

• All the fossils ever discovered on Earth

• a chart that divides Earth’s history into different time units.

• when the last individual organism of a species dies

• fossils that have characteristics of both ancestral organisms and organisms that evolved

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What are Transitional Fossils?

• All the fossils ever discovered on Earth

• a chart that divides Earth’s history into different time units.

• when the last individual organism of a species dies

• fossils that have characteristics of both ancestral organisms and organisms that evolved

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Asteroid impacts and volcanic eruptions are examples of what type of environmental changes?

• Sudden Changes

• Gradual Changes

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Mountain range or an ocean separating a species, or sea level changing are examples of what type of environmental changes?

• Sudden Changes

• Gradual Changes

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What can scientists use to explain when the fossils in the bottom of the figure appeared on Earth?

• relative-age dating

• trace fossils

• mineralization

• carbonization

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Which is an example of a sudden change that could explain the extinction of a species?

• a mountain range isolates a spices

• Earth’s tectonic plates move

• sea level changes

• a volcano erupts

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What is a major cause of extinctions?

• biological evolution
• environmental change
• carbonization
• mineralization

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What is a transitional species? select all that apply

• A species that migrates a lot

• A species that shows how organisms changed over time

• A species that existed for a very long time

• A species that shows the intermediate (middle) state between an ancestor and a known descendant.

• 

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