Give scientific reasons : In cockroach well developed respiratory system is seen.
Give scientific reasons : In cockroach well developed respiratory system is seen.
$\Rightarrow$ As there is no Haemoglobin in blood of cockroach. So $\mathrm{O}_{2}$ and $\mathrm{CO}_{2}$ can not be transported by blood. Trachea is spread in the whole body like net of respiratory system. Each cell is supplied with respiratory gases $\left(\mathrm{O}_{2}\right)$ by it. For that respiratory system is well developed in it.
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Which of the following statement(s) is/are correct regarding respiratory system of cockroach ?
($i$) It consists of a network of trachea, that open through $12$ pairs of small holes called spiracles present on the lateral side of the body.
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($i$) It consists of a network of trachea, that open through $12$ pairs of small holes called spiracles present on the lateral side of the body.
($ii$) Thin branching tubes carry oxygen from the air to all the parts.
($iii$) The opening of the spiracles is regulated by sphincters.
($iv$) Exchange of gases take place at the tracheoles by diffusion.
Cescribe the Respiratory cavities of cockroach.
Cescribe the Respiratory cavities of cockroach.