lungs
Because u have breath out CO2 because our bodies need O2 and plus if u breath to much u die like instant
carbon dioxide.
bacause they have smaller bodies than us and fish need sea salt to breath
What we need to breath is oxygen! If we don't have it we are sure to DIE!!!!
we need to breath because if we do not breath we can die and have ahearth acttack
Like all insects they have spiracles along the sides of their bodies.
It might me possible if our bodies were built completely different
Why it's unhealthy to not breath is that your lungs need the air we breath in now so we can breath and other things.
Because we need it to survive
we need to breath because if we do not breath we can die and have ahearth acttack
We get the nitrogen our bodies need by eating food.
Eat, breath, and sunlight exposure.