Punjab Biology Online 10th Class Test Lesson 1 Gaseous Exchange

Gas exchange is a biological process through which different gases are transferred in opposite directions across a specialized respiratory surface. Gaseous exchange In lungs and body Tissues. Gaseous exchange is the movement of oxygen into the body, and carbon dioxide out of the body. Gas exchange or respiration takes place at a respiratory surface; a boundary between the external environment and the interior of the body.

Gaseous exchange Lesson 1 Biology Online Test 10th Below

This quiz must be completed in 30 minutes.
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