Which of the following correctly lists the levels of life's organizational hierarchy from smallest to largest?

• A. Organelles, atoms, molecules, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystems, biosphere
• B. Atoms, molecules, organelles, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystems, biosphere
• C. Cells, molecules, atoms, organelles, tissues, organs, organ systems, organisms, populations, communities, ecosystems, biosphere
• D. Molecules, atoms, organelles, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystems, biosphere

Answer: (B)