Fish Biodiversity Crossword

This printable crossword puzzle on the topic of Animals (General) has 14 clues. Answers range from 4 to 14 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

Used to help fish swim and move freely.
What fish use to breathe
A gas filled sac which helps control buoyancy
Extends from the tail, moves side to side and amplifies the swimming motion
Bony fish
Jawless and scaleless
Protect the fish and help reduce water resistance
Protects the spinal chord
Unable to regulate body temperature
Domain
Kingdom
Phylum
Helps keep the fish upright and moving in a straight line
One anterior and one posterior