An animal in which the oxygenation of blood does not take place in the lungs is:

Explain the process by which inhalation occurs during breathing in human beings.

The actual exchange of gases takes place in the . . . . . . of the lungs.

If a plant is releasing carbon dioxide and taking in oxygen during the day,does it mean that there is no photosynthesis occurring? Justify your answer.

In the experimental setup to demonstrate that $CO_2$ is released during respiration, name the substance taken in the small test tube kept inside the conical flask. State its function and the consequence of its use.

Fill in the following blanks with suitable words:
$Yeast$ undergoes . . . . . . respiration whereas $Amoeba$ undergoes . . . . . . respiration.