STEP 1-

STEP 1

STEP 2 -

Sentences

-organism

-organ system

-organs

-tissue

- cells

-organelle

Liver

Heart

Lungs

Lungs-

The lungs provide oxygen for the blood and exhale the unneeded carbon dioxide from our bodies, it is part of the respiratory system.

Liver-

The liver produces proteins that are important to the blood and also breaks down damaged or old blood cells, the liver is part of the digestive system.

Heart-

The heart pumps blood throughout your body to keep you alive, it is part of the cardio vascular system.

The heart depends on Mitochondrial metabolism to provide energy the heart uses to pump blood.