Which sequence correctly lists the different levels of biological organization, from the smallest and simplest to the largest and most complex?

A) cells-organs-tissues-organ systems-organism
B) cells-tissues-organ systems-organs-organism
C) tissues-cells-organs-organ systems-organism
D) tissues-organs-organ systems-organism-cells
E) cells-tissues-organs-organ systems-organism

Biological Organization

The hierarchy of complex biological structures and systems that define life, from atoms and molecules to cells, tissues, organs, organisms, populations, communities, and ecosystems.

Levels

Different stages, degrees, or magnitudes within a system, organization, or scientific classification.

Complex

Consisting of many different and connected parts, or a system that is not simple and may be difficult to understand.