Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Biology Human body
Forced expiration occurs because of the activity of ________.
1
Only diaphragm
2
Intercostal and abdominal muscles
3
Both diaphragm and intercostal muscles
4
More than one of the above
5
None of the above