Students know some organisms are made of just one cell and that multicellular organisms can consist of thousands to millions of cells working together.
- All living things are composed of cells. Cells range from very simple to very complex and have structures which perform functions for the organism. Cells and structures can be damaged or fail because of intrinsic failures or disease.
Students understand that living things are composed of cells, which are specialized in multicellular organisms to perform a variety of life functions.