MS-LS1-3
Construct an explanation supported by evidence for how the body is composed of interacting systems consisting of cells, tissues, and organs working together to maintain homeostasis.
Clarification statement: Emphasis should be on the function and interactions of the major body systems (e.g. circulatory, respiratory, nervous, musculoskeletal).
Assessment boundary: Assessment is focused on the interactions between systems not on the functions of individual systems.
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.
Resources
Examples and discussion of resources for the learning, teaching, and assessment of MS-LS1-3.

Assessment
What assessment of MS-LS1-3 might look like on a NY state exam.

NGSS Dimensions
Performance expectation MS-LS1-3 was developed using the following elements from the NRC document A Framework for K-12 Science Education:
Connections to Other Standards
MS-LS1-3 connections to ELA, math, and other science standards as outlined by the NYS Education Department: