Evolution Puzzle Crossword
This printable crossword puzzle on the topic of Ecology & Evolution has 15 clues. Answers range from 3 to 17 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Description
Process by which modern organisms have descended from ancient organisms.
Traits and behaviors that help an organism survive and reproduce.
Used to determine the age of fossils by comparing with other fossils.
Group of genes in a population.
Bird that Darwin studied.
Method of measuring rates of decay of radioactive materials.
Process in which new species evolve from old species.
Process that enables organisms to become better suited to their environment.
Length of time required for half of the radioactive atoms in a sample to decay.
Organisms habitat and its job in the habitat.
Scientist who studies fossils.
Organ that serves no purpose in an organism.
Evidence of an ancient organism.
Amount of organisms of the same species in a certain area.
Largest interval of time in a time scale.
