Classifying Living Things Crossword
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
 
 
Down: 1) algae and protozoans2) probably the oldest living organisms4) an animal with a backbone5) a living thing Across: 3) without tubes or channels6) an animal without a backbone7) too small to be seen with the eye alone8) organisms that can't make food and can't move about.9) having tubes or channels
 

 

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