Biological Levels of Organization

Question 1

What are the 13 levels of biological organization?

Answer 1

Atoms Organ Ecosystem
Molecules Organ System Biome
Organells Organisms Biosphere
Cells Population
Tissues Community

Question 2

What are the living levels?

Answer 2

Organells Organ Systems Ecosystem
Cells Organisms Biosphere
Tissues Population
Organs Community