Name an animal which absorbs oxygen through its moist skin.

State whether the following statement is true or false: During respiration, plants take in $CO_2$ and release $O_2$.

When a person breathes in air, the air enters into his body through an organ $A$ having two holes $B$ in it. The air then passes through pharynx and larynx and enters into a tube $C$. The tube $C$ divides into two smaller tubes $D$ at its lower end. The two smaller tubes are attached to two respiratory organs $E$. Each smaller tube divides inside the organs $E$ to form a large number of still smaller tubes called $F$. The smallest tubes $F$ have air-sacs $G$ at their ends in which gaseous exchange takes place in the body of the person. Identify $A, B, C, D, E, F$ and $G$.

Describe the process of respiration in $Amoeba$. State whether it is anaerobic respiration or aerobic respiration.

Respiration is an endothermic process. [True/ False]

Which structure is primarily responsible for initiating the process of inspiration and expiration of air in humans?