significance of double respiratory system of birds
Answers
Answered by
0
Answer:
filtration of oxygen double times
Answered by
3
Explanation:
The respiratory system of birds facilitates efficient exchange of carbon dioxide and oxygen via continuous unidirectional airflow and air sacs. ... A breath of oxygen-rich inhaled air remains in the respiratory system for two complete inhalation and exhalation cycles before it is fully spent (used) and exhaled out the body
Similar questions