Change Over Time (Evolution)

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What is evolution?

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Evolution is the process through which species change over time through variations and natural selection.

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NGSS.MS-LS4-4

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What is natural selection?

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Natural selection is the process where organisms with traits better suited to their environment are more likely to survive and reproduce.

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NGSS.MS-LS4-4

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What is a fossil?

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A fossil is the preserved remains or traces of an organism that lived in the past.

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NGSS.MS-LS4-1

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What is mineralization in the context of fossils?

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Mineralization is the process by which organic material is replaced by minerals, forming a fossil.

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What does 'common ancestor' mean?

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

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NGSS.MS-LS4-2

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How do scientists determine the relatedness of species?

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Scientists determine relatedness by examining how recently species shared a common ancestor.

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NGSS.MS-LS4-2

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What are variations in a population?

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Variations are differences in traits among individuals in a population.

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NGSS.MS-LS4-4

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Why are variations important for evolution?

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Variations are important because they can lead to the development of new species over time.

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NGSS.MS-LS4-4

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What is the significance of adaptations?

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Adaptations are traits that improve an organism's ability to survive and reproduce in its environment.

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NGSS.MS-LS4-2

NGSS.MS-LS4-4

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What is the role of competition in evolution?

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Competition can drive natural selection, as organisms compete for limited resources.

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