Evolution Crossword
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
 
 
Down: 1) occurs when a population divided by a geographic barrier evolves into two or more population unable to interbreed2) occurs when a species evolve into a new species in an area without a geographic barrier3) study of the distrubution of plants and animals on earth4) darwin's term for the selective breeding of organism's selected for certain traits in order to produce offspring having those traits7) change in the frequency of a trait based on competition for a mate8) reduced form of a functional structure that indicates share ancestory10) structure that has the same function but different construction and was not inherited from a common ancestor11) process in which a large population declines in number then rebounds12) shift of a poulation toward an extreme version of a beneficial trait14) random effect that can occur when a small population settles in an area separated from the rest of the population and interbreeds, producing unique allelic variation15) morphological aadaptations that allow organisms to blend their surroundings16) organism's early prebirth stage of developement17) the best person that ever lived20) measure of the trait's relative contribution to the followinf generation23) hereditary changes in groups of living organisms over time Across: 5) adaptation in which one species evolves to resemble another species for protection or another advantage6) theory that evolution occurs in small , gradual steps over time9) most common form of natural selection in which organisms with extreme expressions of a trait are removed13) diversification of a species into a number of different species, often over a relatively short time span 18) anatomically similar structure inherited from a common ancestor19) random change in allelic frequencies ina population21) more primitive characteristic that appeared common ancestors22) new feature that had not appeared in common ancestors24) theory that evolution occurs with relatively sudden periods of speciation followed by long periods of stability25) process in which individuals with average traits are removed , creating two populations with extreme traits 26) theory of evolution developed by Darwin , based on four ideas : excess reproduction, variations, inheritance, and the advantages of specific traits in the environment
 

 

Create your own Crossword Puzzle for Free!		  Show Errors as I Type