Apologia General Science Module 7

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What is uniformitarianism?

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Uniformitarianism is the principle that the same geological processes that operate today also operated in the past, suggesting that the Earth is much older than a few thousand years.

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What does it mean if a species is extinct?

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A species is considered extinct when there are no living individuals left of that species.

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What are fossils?

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Fossils are the preserved remains or traces of organisms that lived in the past.

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Can fossils come from both living and extinct organisms?

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Yes, fossils can come from organisms that are still alive today as well as those that are now extinct.

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What type of fossil is formed from the carbonized remains of a plant?

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Carbonized remains are a type of fossil that forms when plant material is compressed and heated, leaving a carbon imprint.

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What is resin in the context of fossils?

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Resin is a thick, slowly flowing liquid produced by plants that can harden into a solid and may preserve organisms.

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What is petrification?

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Petrification is the process by which organic material becomes a fossil through the replacement of its original material with minerals.

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What is a mold fossil?

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A mold fossil is a cavity in rock that has the shape of an organism, formed when the organism decays after being buried.

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What is a cast fossil?

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A cast fossil is a type of fossil that forms when a mold is filled with minerals or sediment, creating a replica of the original organism.

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What is the significance of studying fossils?

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Studying fossils helps scientists understand the history of life on Earth, including evolution and extinction events.