ICSE Class 9 Biology The Respiratory System
- Are there any parts of the human body that gets O2 directly from the air and not from the blood /
- why do we not breathe through mouth
- The respiratory tubes formed by the division of wind pipe
- What is meant by lung alveoli
- does the nose help in speaking
- odd one out (along with reason) Diffusion, Respiratory gases, Alveoli , capillary network
- Name two types of muscles which help in respiration????
