Question

what list shows the levels of organization in living structures from smallest to largest?
cells, tissues, organs, organ systems
tissues, cells, organs, organ systems
cells, tissues, organ systems, organs

Explanation:

Living organisms follow a hierarchical structural organization. The smallest fundamental unit of life is the cell. Groups of specialized cells form tissues, tissues combine to form organs, and multiple organs work together as organ systems.

Answer:

cells, tissues, organs, organ systems