Fossil Record Review

Front

What is a fossil record?

Back

The fossil record is the history of life on Earth as documented by fossils, which are the preserved remains or traces of organisms from the past.

Front

What are fossils?

Back

Fossils are the remains or traces of ancient organisms that have been preserved in rock or sediment.

Front

What is the significance of different layers in the fossil record?

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Different layers in the fossil record represent different time periods, showing how life has changed over time.

Front

What does it mean if a fossil is found in multiple layers?

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If a fossil is found in multiple layers, it indicates that the organism existed during different time periods.

Front

What is the Permian period known for?

Back

The Permian period is known for the diversification of reptiles and the mass extinction event at its end.

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What is the Jurassic period known for?

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The Jurassic period is known for the dominance of dinosaurs and the first appearance of birds.

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What are homologous structures?

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Homologous structures are body parts in different species that are similar in structure but may serve different functions, indicating a common ancestor.

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What is natural selection?

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Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring.

Front

What can cause a species to go extinct?

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A species can go extinct due to environmental changes, loss of habitat, competition, or inability to adapt.

Front

What does it mean if organisms share a common ancestor?

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If organisms share a common ancestor, it means they have evolved from a species that existed in the past.