Fish and Amphibians Crossword

This printable crossword puzzle on the topic of Animals (General) has 11 clues. Answers range from 4 to 18 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

fingerlike projections through which gases enter and leave the blood
opening at the rear of the cheek cavity
flow that ensures the oxygen diffuses into the blood
tubelike units that regulate the body's salt and water balance
sensory system that extends along each side of a bony fish's body
hard plate that covers the gills on each side of the head
sac of gas used to help a fish regulate its buoyancy
a species of fish
organ that helps land animals breathe
vein that carries oxygen rich blood from the amphibians lungs to its heart
dividing wall that separates the amphibian atrium into right and left halves