Biological Organization Levels

Front

Atom

Back

unit of matter

Front

Molecule

Back

or more atoms bonded together

Front

Organelle

Back

structure within a cell

Front

Cell

Back

unit of life

Front

Tissue

Back

of similar cells performing a function

Front

Organ

Back

made of different tissues

Front

Organ system

Back

of organs working together

Front

Organism

Back

living thing

Front

Population

Back

of same species in an area

Front

Community

Back

populations living together