HS-LS4-4 | Natural Selection and Adaptation
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.
Assessment
What assessment of HS-LS4-4 might look like on a NY state exam.
Performance Level Descriptions
PLDs communicate the knowledge and skills expected of students to demonstrate proficiency in each Learning Standard. NYS assessments classify student performance into one of five levels.
Vocabulary
Terms from the Biology Glossary that come from this standard or from the released exam questions that assess it.
- acidity
- adaptation
- advantageous heritable trait
- claim
- climate change
- correlation (versus cause)
- differential survival and reproduction
- ecosystem
- empirical evidence
- environmental factor
- evolution
- gene
- gene frequency
- generation
- geographic barrier
- investigation
- natural selection
- population
- proportion
- selection
- trait
- trait frequency
- algae – Sample 2024
- allele – June 2026
- altitude – June 2025
- appendage – June 2026
- average – June 2026, Jan 2026, Aug 2025
- behavior – Jan 2026
- behavioral adaptation – June 2025
- biodiversity – Aug 2025
- blood – Aug 2025, June 2025
- body temperature – June 2026
- burrow – June 2025
- cell – June 2026, June 2025
- coloration – June 2026
- conservation – Aug 2025
- coral reef – Sample 2024
- DNA – Aug 2025
- environmental change – June 2026, Aug 2025
- extinction – Aug 2025
- foraging – June 2025
- genetic diversity – Aug 2025
- genetic variation – Aug 2025
- habitat – Aug 2025
- habitat loss – Aug 2025
- heart – June 2025
- herbivore – June 2025
- human activity – Aug 2025
- hunting – Aug 2025
- interbreeding – Aug 2025
- kidney – Aug 2025
- lung – June 2025
- mammal – Aug 2025, June 2025, Sample 2024
- mutation – June 2026, Aug 2025
- nephron – Aug 2025
- nephron loop – Aug 2025
- niche – Sample 2024
- omnivore – Sample 2024
- oxygen – June 2025
- poaching – Aug 2025
- predation – Aug 2026
- predator – Aug 2026, June 2025
- prey – Aug 2025
- probability – June 2026, Jan 2026
- radiation (radioactive) – June 2026
- reproductive rate – Aug 2025
- reproductive success – Aug 2026
- skin – June 2026
- social behavior – Jan 2026
- species – Aug 2025, June 2025, Sample 2024
- survival – June 2026
- territory – Aug 2025
- trend – June 2026, Sample 2024
- selection pressure (environmental pressure) – implied by "biotic and abiotic differences in ecosystems"
Resources
Examples and discussion of resources for the learning, teaching, and assessment of HS-LS4-4.
NGSS Dimensions
Performance expectation HS-LS4-4 was developed using the following elements from the NRC document A Framework for K-12 Science Education:
- Constructing Explanations and Designing Solutions
- Construct an explanation based on valid and reliable evidence obtained from a variety of sources (including students’ own investigations, models, theories, simulations, peer review) and the assumption that theories and laws that describe the natural world operate today as they did in the past and will continue to do so in the future.
- LS4.C: Adaptation
- Natural selection leads to adaptation that is, to a population dominated by organisms that are anatomically, behaviorally, and physiologically well suited to survive and reproduce in a specific environment. That is, the differential survival and reproduction of organisms in a population that have an advantageous heritable trait leads to an increase in the proportion of individuals in future generations that have the trait and to a decrease in the proportion of individuals that do not.
- Cause and Effect
- Empirical evidence is required to differentiate between cause and correlation and make claims about specific causes and effects.