This printable crossword puzzle on the topic of Ecology & Evolution has 10 clues. Answers range from 6 to 14 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Evolution of new species.
Role of organisms in its environment.
All living things are.
Any preserved remain or imprint of a once living thing.
Rocks that record the passing of geological time.
These may differ in form or.
A structure that is similar because of common ancestry
A structure that is similar not due to a common ancestor.
A structure that is no longer used by the organism.
The change of allele frequencies with in a population.