Construct an explanation based on evidence for how natural selection leads to adaptation of populations. 

[Clarification Statement: Emphasis is on using data to provide evidence for how specific biotic and abiotic differences in ecosystems (such as ranges of seasonal temperature, long-term climate change, acidity, light, geographic barriers, or evolution of other organisms) contribute to a change in gene frequency over time, leading to adaptation of populations.]

NGSS Disciplinary Core Ideas:

LS4.C: Adaptation

NGSS Crosscutting Concepts

Cause and Effect

        Connections to Nature of Science

Scientific Knowledge Assumes an Order and Consistency in Natural Systems

  • Scientific knowledge is based on the assumption that natural laws operate today as they did in the past and they will continue to do so in the future. (HS-LS4-1),(HS-LS4-4)

NGSS Science & Engineering Practices

Constructing Explanations and Designing Solutions

Constructing explanations and designing solutions in 9–12 builds on K–8 experiences and progresses to explanations and designs that are supported by multiple and independent student-generated sources of evidence consistent with scientific ideas, principles, and theories.


Spotted Salamander Symbiosis


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