The best way to increase validity of data in an experiment is by performing the experiment numerous times and obtaining measurements and data upon each run of the experiment.
        
                    
             
        
        
        
B. community
hope this helps;)
        
             
        
        
        
Answer: Option B) have mitochondria and chloroplasts. 
Plant cells have mitochondria and chloroplasts. 
Explanation:
Unlike animal cells, plants cells possess mitochondria and chloroplasts. Mitochondria serves as site for respiration giving off oxygen as by-product while chloroplasts are site of photosynthesis, where sugar molecules are formed from simple inorganic molecules like atmospheric carbon dioxide, water and sunlight trapped by chlorophyll.
 
        
             
        
        
        
Some mutations in living species help them to adapt and help protect them from predtors
        
                    
             
        
        
        
Answer:
A <u><em>theory  </em></u>of how the earth was created.
Explanation:
Well first off, evolution is not correct. If it were then how come we don' see bombs blowing up and creating mokeys or birds? Explosions destroy things, so therefor evolution is not correct Christianity is.
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