Match the following.

	Column I		Column II
i	Lungs	a	Branchial respiration
ii	Gills	b	Cutaneous respiration
iii	Skin	c	Pulmonary respiration
iv	Network of tubes	d	Tracheal respiration

	i	ii	iii	iv
1	c	a	b	d
2	d	a	b	c
3	b	a	d	c
4	c	d	b	a

Respiration by lungs is called pulmonary respiration. Example: Monkey

Respiration by gills is called branchial respiration. Example: Fish

Respiration by skin is called cutaneous respiration. Example: Frog

Tracheal respiration is observed in terrestrial arthropods (cockroach) which have a tracheal network.