The statement that is part of the cell theory is:
The flow of energy occurs within cells.
However, it's important to note that the classic cell theory primarily includes these three main tenets:
- All living organisms are composed of one or more cells.
- The cell is the basic unit of life.
- All cells arise from pre-existing cells.
The statement "new cells arise from chemicals in the environment" is inaccurate within the context of cell theory since cells arise from existing cells, not chemicals. The statement "every cell in an organism is identical" is not universally true, as different types of cells can have different functions. Lastly, while many organisms are multicellular, single-celled organisms are also considered to be life, so the statement "multiple cells are required to form life" is not appropriate.
If you had to select one that aligns closely with cell theory, it would be the idea of energy flow occurring within cells, although it is not one of the original tenets of cell theory.
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