This printable crossword puzzle on the topic of Ecology & Evolution has 23 clues. Answers range from 7 to 21 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
English natural scientist who formulated a theory of evolution by natural selection (1809-1882)
The process whereby earth's life changes over time through changes in the genes of
A process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals because of those traits.
A measure of the ability to survive and reproduce relative to other members of the
The physical features of an organism that help it survive, like the bill on a bird or the fur
An inherited behavior that helps an organism survive.
The comparison of body structures and how they vary among species
Similar function but different structure - does not show common ancestry - Ex: butterfly wing and bat wing)
Structures in different species that are similar because of common ancestry.
Remnant of a structure that may have had an important function in a species' ancestors, but has no clear function in the modern species.
The scientific study of how living things are classified
The variety of life in the world or in a particular habitat or ecosystem.
The branch of biology and medicine concerned with the study of embryos
How Earth's surface has changed over time, ex: continental drift
A German scientist who proposed the theory of continental drift in the 1900's
The hypothesis that the continents slowly move across Earth's surface.
The name of the single landmass (supercontinent) that broke apart 200 million years ago and gave rise to today's continents
The theory that pieces of Earth's lithosphere are in constant motion, driven by convection currents in the mantle.
A plate boundary where two plates move toward each other.
A plate boundary where two plates move away from each other.
A plate boundary where two plates move past each other in opposite directions
Proposed the theory of sea-floor spreading
The process that creates new sea floor as plates move away from each other at the mid-ocean ridges