systems

1. Respiratory system

2. nose
trachea
lungs
diaphragm

3. nose
trachea
lungs
diaphragm
We breathe in oxygen and
breathe out carbon dioxide
from it
Gives oxygen to the blood and
takes the carbon dioxide from
the blood
Passage way

4. Oxygen + Nutrients = Energy
How do the organs work ? From where do
they get energy ?

5. It’s the wastes of the body organs
Why does the carbon dioxide goes out
from the blood ?
video