This printable crossword puzzle on the topic of Ecology & Evolution has 11 clues. Answers range from 7 to 18 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
the word used to describe when a species no longer exists
the gradual change of a species over time
a group of species who are similar and can mate amongst eachother
a trait that helps an organism survive and reproduce
any difference between members of the same species
changes in the DNA
the process by which a new species evolves from another species
random changes in gene frequencies
same structure, but different function
same function but different structure
closely related species evolve to have differences in their structures