4. How different are the
respiration in fishes and the
respiration in adult
amphibians?

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
In fish gas is done by
contact of water the branchiae
(gills). gain and exit
circulation through the .

In adult amphibians exchange is
done the moist and
skin (cutaneous respiration) also
through the , a set of airway
terminations associated a highly
vascularized specialized in gas
.

The axolotl is exotic amphibian found
Mexico that lives water and
“breathes” gills even as
adult.