P6 Exploring Evolution and Fossils

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What is evolution?

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Evolution is the process by which different kinds of living organisms develop and change over time through genetic variation and natural selection.

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What are fossils?

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Fossils are the preserved remains or traces of ancient organisms, often found in sedimentary rock.

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What is natural selection?

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

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What is a common ancestor?

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A common ancestor is a species from which two or more different species have evolved.

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What is embryology?

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Embryology is the study of the development of embryos from fertilization to birth.

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What does it mean if a trait is being selected for?

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If a trait is being selected for, it means that individuals with that trait are more likely to survive and reproduce in their environment.

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What is genetic variation?

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Genetic variation refers to the differences in DNA among individuals within a population.

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How can fossils provide evidence for evolution?

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Fossils can show changes in species over time and reveal how different species are related through common ancestry.

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What is the significance of rock layers in studying fossils?

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Rock layers can indicate the age of fossils and the environmental conditions at the time they were formed.

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What is the role of environmental factors in evolution?

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Environmental factors can influence which traits are advantageous, leading to natural selection.