Levels of Organization

Front

The 4th level of organization in a multicellular organism

Back

organ system

Front

The 2nd level of organization in a multicellular organism

Back

tissue

Front

The 1st level of organization in a multicellular organism

Back

cell

Front

All of the organ systems working together to maintain life

Back

organism

Front

Several different organs working together to perform specific functions

Back

organ system

Front

Several different tissues working together to perform a specific function

Back

organ

Front

A group of similar cells that perform a specific function

Back

tissue

Front

The basic unit of life

Back

cells

Front

Describes an organism made of more than one (specialized) cell

Back

multicellular

Front

Observations that cannot be seen with the unaided eye

Back

microscopic