This printable crossword puzzle on the topic of Ecology & Evolution has 10 clues. Answers range from 8 to 21 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
change over time; the process by which modern organisms have descended from ancient organisms
selective breeding of plants and animals to promote the occurrence of desirable traits in offspring
often called survival of the fittest
structures that are similar in different species of common ancestry
body parts that share a common function, but not structure
study of past and present distribution of organisms
structure that is inherited from ancestors but has lost much or all of its original function
group of anthropoids that includes gibbons, orangutans, gorillas, chimpanzees, and humans
separation of a species or population so that they no longer interbreed and evolve into two separate species
formation of new species