1.
Two friends are eating together on a dining table. One of them suddenly starts coughing while swallowing some food. This coughing would have been due to improper movement of
2.
The thoracic chamber is formed dorsally by the ...A..., ventrally by the ...B..., laterally by the ...C... and on lower side by the dome-shaped ...D...
Select the right choices for A, B, C and D to complete the given NCERT statement
3.
Which structure of the lungs is directly involved in /C exchange between air and blood capillary?
4.
If the level of carboxyhaemoglobin in blood reaches upto......, the functioning of central nervous system is severely affected which results in death.
5.
When the body is rapidly oxidizing fat, excessive ketone bodies gets accumulated in the body, resulting in the formation of