Final answer:
Cells in a complex organism organize into cells, tissues, organs, organ systems, and the organism itself, rather than specifically five levels. This hierarchical structure allows for specialized functions and interdependent relationships within the organism and extends beyond it to include populations and ecosystems.
Step-by-step explanation:
The statement that cells are organized into five levels in complex organisms is false. In complex multicellular organisms, cells are indeed highly organized but not specifically into five levels. The main levels of organization in these organisms are cells, tissues, organs, organ systems, and the organism itself. But beyond that, organisms exist within populations, communities, ecosystems, and ultimately the biosphere, demonstrating that there are even more levels of organization in the biological world.
Cells form the basic building blocks of life, grouping together to form tissues. These tissues then collaborate to form organs, each with a specific function. Multiple organs work together as part of an organ system, and all of the organ systems in an organism work together to create a fully functioning complex organism. This hierarchical structure showcases the intricate organization and specialization that enables multicellular organisms to live, grow, and reproduce.
Understanding this helps comprehend how highly structured and interdependent life is, from the smallest cellular level to the broad scope of the biosphere. This organization is not limited to just visible structures but extends to include all biological processes.