Question

Match the following.

• A. Lungs
• B. Gills
• C. Moist skin
• D. Tracheae

Answer 1

Tadpoles respire through their gills, but upon metamorphosis the adult amphibians respire through lungs on land and via moist skin surface underwater.

Reptiles like crocodiles respire only through lungs.

Insects like silverfish respire through tube-like structures called tracheae.

Earthworms respire via their moist skin surfaces.