Topics of this game:
- Where does external respiration occur?
- The walls of the alveoli are only one cell thick.
- Blood arriving in the alveoli has a ?????? concentration than in the alveoli.
- The air in the alveoli has a much ???? concentration of ??
- Exhalation removes carbon dioxide from the alveoli into the external environment.
- Which steps make up breathing?
- During internal respiration, gases are exchanged between...
- After external respiration, the oxygen rich blood is transported
- The heart pumps the oxygen-rich blood to
- How does gas exchange work during internal respiration?
