Big Idea: Cells in Populations and Ecological Systems

Examine the Big Idea of Cells at the organismal, population and ecological system levels.

This Big Idea is that cells are a fundamental structural and functional unit of life.

Main themes to integrate throughout the Big Idea are:

  • All cells come from preexisting cells.
  • Cells maintain internal environments that differ from their external environments.
  • Cell structure defines cell function.
  • Cells communicate with other cells.