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.
a characteristic that improves an individual's ability to survive and reproduce in a particular environment.
a group of organisms that are closely related and can mate to produce fertile offspring.
the process in which inherited characteristics within a population change over generations such that new species sometimes arise.
the trace or remains of an organism that lived long ago, most commonly preserved in sedimentary rock.
the history of life in the geologic past as indicated by the traces or remains of living things.
a genetically determined characteristic.
the human practice of breeding animals or plants that have certain desired traits.
the process by which individuals that are better adapted to their environment survive and reproduce more successfully than less well adapted individuals do; a theory to explain the mechanism of evolution.
the period between the birth of one generation and the birth of the next generation.
the period between the birth of one generation and the birth of the next generation.