Give scientific reasons: In cockroach,a well-developed respiratory system is seen.

(N/A) $\Rightarrow$ The blood of a cockroach lacks hemoglobin,which is the respiratory pigment responsible for oxygen transport in many animals.
As a result,the blood cannot transport $O_{2}$ and $CO_{2}$.
To overcome this,the cockroach possesses a highly branched network of tubes called the tracheal system that spreads throughout the entire body.
This system ensures that each cell is directly supplied with respiratory gases $(O_{2})$ and that $CO_{2}$ is removed efficiently.
Therefore,the respiratory system is well-developed in the cockroach to compensate for the absence of a respiratory pigment in its blood.