This printable crossword puzzle on the topic of Ecology & Evolution has 20 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 organisms ability to live and reproduce in a certain area
A group of organisms that are closely related and are able to mate to produce more of their kind
The process in which populations change over time
Traces or remains of an organism that lived long ago
A historical sequence of life indicated by fossils
Theory of Evolution was created by
A genetically determined characteristic
The human practice of breeding organisms to get a desired trait
A theory to explain the mechanism of evolution
The period between the birth of one generation and the birth of the next generation
The formation of new species as a result of evolution
Describes when a certain species has died out completely
The standard method used to divide the Earth's long natural history into parts
A theory that explains how the tectonic plates move and change shape
A super continent that was said to have broke apart in are original continents today
A period in time from the formation of the Earth to the beginning of the Paleozoic, this time began most life on Earth
The Age of Reptiles
The Age of Mammals
A type of animal with a thumb and binocular vision
The division of organisms into groups, or classes, based on specific characteristics