HS-LS4-2
Construct an explanation based on evidence that the process of evolution primarily results from four factors: (1) the potential for a species to increase in number, (2) the heritable genetic variation of individuals in a species due to mutation and sexual reproduction, (3) competition for limited resources, and (4) the proliferation of those organisms that are better able to survive and reproduce in the environment.
Clarification statement: Emphasis is on using evidence to explain the influence each of the four factors has on number of organisms, behaviors, morphology, or physiology in terms of ability to compete for limited resources and subsequent survival of individuals and adaptation of species. Examples of evidence could include mathematical models such as simple distribution graphs and proportional reasoning.
Assessment boundary: Assessment does not include other mechanisms of evolution, such as genetic drift, gene flow through migration, and co-evolution.
Resources
Examples and discussion of resources for the learning, teaching, and assessment of HS-LS4-2.
Assessment
What assessment of HS-LS4-2 might look like on a NY state exam.
NGSS Dimensions
Performance expectation HS-LS4-2 was developed using the following elements from the NRC document A Framework for K-12 Science Education:
Connections to Other Standards
HS-LS4-2 connections to ELA, math, and other science standards as outlined by the NYS Education Department: