$A$ hatching egg of a chick is covered by plaster of paris. It is harmful for

Choose the correct option by matching the organisms in Column-$I$ with their respective respiratory organs in Column-$II$.

Column-$I$	Column-$II$
$(p)$ Sponges	$(I)$ Through tracheal tubes
$(q)$ Insects	$(II)$ Through lungs
$(r)$ Molluscs	$(III)$ Vascularized gills
$(s)$ Reptiles	$(IV)$ Simple diffusion over their entire body surface
	$(V)$ By their moist cuticle

Find the correct sequence for $p-q-r-s$.

$O_{2}$ exchange with $CO_{2}$ by simple diffusion over the entire body surface takes place in:
$I.$ Sponges
$II.$ Coelenterates
$III.$ Flatworms
Select the correct option to complete the given statement.

Which of the following respires by gills?

Given below are four matchings of an animal and its kind of respiratory organ:
$I.$ Silver fish - Trachea
$II.$ Scorpion - Book lung
$III.$ Sea squirt - Pharyngeal gills
$IV.$ Dolphin - Skin
The correct matchings are:

Match the Column $I$ with Column $II$.

Column $I$ (Animals)	Column $II$ (Respiratory organs / surface)
$1$. Spider	$a$. Internal gills
$2$. Coelenterates	$b$. Book lungs
$3$. Frog	$c$. Plasma membrane
$4$. Fishes	$d$. Lungs
	$e$. External gills

Choose the correct option.