The term “respiration” is derived from …………

The term respiration came into use, a century after the word ………….. was used, way back in the 14th century.

Oxygen was discovered by ……………

Which of the following scientists found that the air that we breathe out precipitates lime water?

Fixed air means :

The life process that leads to fine utilization of food is :

“Human Physiology” was written by ………….. in mid 19th century.

The muscular flap-like valve that prevents entry of food into respiratory tract

The structure that channalises the air into lungs

The structural and functional units that participate in the gaseous exchange of lungs are …………