Origin and Evolution of Amphibians Crossword
This printable crossword puzzle has 10 clues. Answers range from 3 to 19 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Description
Adaptations in an ancestral group that allow a shift to new functions
a frog before developing
bones in a lobe-finned are similar in shape to this
thought to be the first land vertebrates
The oldest amphibian fossils date back to this year
Early amphibians had what
how many species of amphibians
number of salamander species
Most amphibians undergo this
the class name for amphibians
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