Characteristics of Life
Levels of organization
Smallest to largest
100

Our Puppies had a litter of puppies yesterday

Reproduction

100
Smallest unit of life

Cell

100

Put in order

Community 

Cell

Atom

Atom

Cell 

Community

200

Eat a good breakfast and you can run longer

Metabolism

200

A group of organisms of the same species in a given area

population

200

Organ

Cell

Biosphere

Cell

Organ

Biosphere

300

The girl grew 5 inches

Growth

300

Smallest unit of matter that has all chemical properties of the substance

Atom

300

tissue

population

organ system

tissue

organ system

population

400

When the light turns on the birds chirp

Responsiveness 

400

The membrane enclosed structures that carry out special functions in a cell

organelle

400

ecosystem

molecule 

tissue

molecule

tissue

ecosystem

500

The human body maintains 98.6 F

Homeostasis

500

Consists of similar cells that work together

Cell

500

organelle

atom

cell

atom 

cell

organelle

M
e
n
u