The spiracle participates in which of the following processes?

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 $p-q-r-s$.

Which of the following respires by gills?

Skin is an accessory organ of respiration in

In which of the following is the skin an accessory respiratory organ?

Different types of respiratory organs like gills,book gills,book lungs and trachea are present in