2.8k views
3 votes
Which

gas is exchanged in the air sac of
longs? -
oxygen and nitrogen
oxygen and carbondioxide
O nitrogen and coarbondioxide
oxygen and hydrogen
O
Other:​

User Davidbilla
by
4.1k points

1 Answer

2 votes

Answer:

oxygen and carbon dioxide.

hope this helps you

User Sebvst
by
4.6k points