Jd science Crossword
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
 
 
Down: 1) was a naturalist who proposed and provided scientific evidence that all species of life have evolved over time from common ancestors through the process he called natural selection. 2) the breeding of plants and animals with desired traits to attempt to produce off spring with these same traits. 3) survival of the fittest organisms that are the best adapted to their environment and the ones that will live long enough to reproduce and pass on their favorable adaptations 4) a marine organism that is an example of an index fossil6) the complete body of fossils that shows how species and ecosystems change over time8) the process of natural selection producing a new species out of existing species over thousands or millions of years10) the process of becoming a fossil 13) an explanation that ties together many hypothesis and observations. Across: 5) The evolutionary termination of a species caused by the failure to reproduce and the death of all remaining members of the species; the natural failure to adapt to environmental change. 7) a fossil found in a narrow time range but widely distributed around the earth; used to date rock layers 8) the most specific classification of living things 9) a fossilized mark that is formed in soft sediment by the movement or actions of an animal. 11) the change over time of living organisms 12) a trait that increases the chances that an organism will survive and reproduce 14) evidence of past life preserved in rock15) the change in population of a species over time. 16) a random change to a gene that results in a new trait
 

 

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