This printable crossword puzzle on the topic of Ecology & Evolution has 16 clues. Answers range from 3 to 10 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
____ is a process where organisms develop into new species from a common ancestor
____ is a process where an organism changes overtime to better survive in their environment
____ is a form of adaptation where an organism blends into its surroundings
____ is a form of adaptation where an organism looks similar to another organism
_____a structure that has individual variations on a common theme
____ structures have very different anatomies but similar functions
____ structures are anatomical remnants that were important to an organisms ancestors, but appear useless
_____ an event that can cause different adaptations within one species
______ Selection. A process Charles Darwin named. Also called "survival of the fittest."
______ Selection. A process where humans breed together animals that have specific traits
The Jurassic period is in the _____ era
The most recent era is the _____
The _____ Explosion
The ____ era is the 3rd oldest.
Which came first, the Archean era or the Proterozoic era?
Which came first: land animals or sea animals?