Which of the following statements is correct?

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Question

(C) Statement $C$ is correct because terrestrial organisms,such as mammals,birds,and reptiles,primarily use lungs for the exchange of gases.Statement

Vedclass · Accepted Answer

Lungs are used by terrestrial organisms for the exchange of gases.

Vedclass · Answer

(C) Statement $C$ is correct because terrestrial organisms,such as mammals,birds,and reptiles,primarily use lungs for the exchange of gases.Statement $A$ is incorrect because $O_2$ is not used to 'directly' break down molecules; rather,it is the final electron acceptor in the electron transport chain during aerobic respiration to facilitate the complete oxidation of glucose.Statement $B$ is incorrect because earthworms respire through their moist skin (cutaneous respiration),not through tracheal tubes.Statement $D$ is incorrect because insects use a network of tracheal tubes for respiration,not their cuticle.

Column-$I$ (Plant Part)	Column-$II$ (Gas Exchange Structure)
$P$. Leaves and young stems	$I$. Lenticels
$Q$. Woody stems	$II$. Stomata
$R$. Roots	$III$. Root hairs

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Given below are four matchings of an animal and its kind of respiratory organ:
$I.$ Silver fish - Trachea
$II.$ Scorpion - Book lung
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The correct matchings are:

Match the following columns:

Column-$I$ (Plant Part) Column-$II$ (Gas Exchange Structure)

$P$. Leaves and young stems $I$. Lenticels

$Q$. Woody stems $II$. Stomata

$R$. Roots $III$. Root hairs

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