Science Quiz #7 Crossword
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
                         
 
 
Down: 1) the left-over of a once useful anatomical structure3) successful reproduction5) a distinguishing quality that can be passed from one generation to another6) successful reproduction7) successful reproduction Across: 2) a group of organisms that can mate with one another to produce fertile offspring4) the solidified remains or imprints of once-living organisms8) a characteristic that helps an organism survive and reproduce in its environment9) a historical sequence of life that shows the order of evolutionary changes10) successful reproduction11) humans, not nature, select which traits will be passed along to the next generation12) the process by which populations accumulate inherited changes over time13) changes in the order of bases in DNA
 

 

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