Explanation

• The correct sequence of biological organization is: Atom → Molecule → Cell → Tissue → Organ

This sequence represents the hierarchy of biological organization, from the smallest units (atoms) to the largest (organs):

• Atoms (the building blocks of matter)
• Molecules (groups of atoms bonded together)
• Cells (the basic structural and functional units of life)
• Tissues (groups of similar cells performing a specific function)
• Organs (structures composed of two or more types of tissues working together)