This printable crossword puzzle on the topic of Ecology & Evolution has 10 clues. Answers range from 5 to 17 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Vertebrate or Invertebrate
Are fish warm-blooded or cold-blooded
How do they breathe?
Example of a cartilaginous fish
What is a type of fishing that is a big problem
Type of jawless fish
The ? Helps fish stay on the bottom of the ocean floor when they sleep
About 90% of fish are ?
What do Cartilanginous fish NOT have
People are catching fish faster then they can ?