LS1- All living organisms have identifiable structures and characteristics that allow survival (organisms, populations & species).



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Click on the GSE numbers, e.g PS1 (K-2) - POC - 2, in the table below to reach additional information about each GSE.

Grade Span Expectations (K-4)


Grade Span Expectations (5-8)

Grade Span Expectations (HS)


LS1 (K-2) - 4
Students demonstrate understanding of structure and function-survival requirements by…

4a identifying the specific functions of the physical structures of a plant or an animal (e.g. roots for water; webbed feet for swimming).
LS1 (3-4) - 4
Students demonstrate understanding of structure and function-survival requirements by…

4a identifying and explaining how the physical structure/characteristic of an organism allows it to survive and defend itself (e.g. of a characteristic – the coloring of a fiddler crab allows it to camouflage itself in the sand and grasses of its environment so that it will be protected from predators).

4b analyzing the structures needed for survival of populations of plants and animals in a particular habitat/environment (e.g. populations of desert plants and animals require structures that enable them to obtain/conserve/ retain water).
LS1 (5-6) - 4
Students demonstrate understanding of differentiation by…

4a identifying cells as the building blocks of organisms.

4b recognizing and illustrating (e.g. flow chart) the structural organization of an organism from a cell to tissue to organs to organ systems to organisms
LS1 (7-8) - 4
Students demonstrate understanding of differentiation by…

4a explaining that specialized cells perform specialized functions. (e.g., muscle cells contract, nerve cells transmit impulses, skin cells provide protection).

4b comparing individual cells of tissues and recognizing the similarities of cells and how they work together to perform specific functions.

4c explaining how each type of cell, tissue, and organ has a distinct structure and set of functions that serve the organism as a whole
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