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Match the following.
Column I (Organisms) Column II (Site of exchange of gases)
A Planaria I Gills
B Earthworm II Lungs
C Terrestrial insects III Entire body surface
D Aquatic arthropods IV Moist cuticle
V Tracheal tubes
Choose the correct option.
A B C D
1 III I IV V
2 I III II IV
3 III IV V I
4 II III I V

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answer is C.

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Detailed Solution

A-III	Entire body surface helps in gas exchange in Planarians.
B-IV	Moist cuticle helps in the gas exchange in earthworms.
C-V	Tracheal tubes help in respiration in terrestrial insects.
D-I	Gills help in gas exchange in aquatic arthropods.

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