The independent Variable or sugar
        
             
        
        
        
Scientist wanted to heat up DNA replication to make the reaction go faster. B
HOPE THIS HELPS! ^_^
        
             
        
        
        
Microorganisms that are capable of causing disease are called pathogens. Although microorganisms that cause disease often receive the most attention, it is important to note that most microorganisms do not cause disease. In fact, many probably provide some protection against harmful microorganisms because they effectively compete with the harmful organisms for resources, preventing them from growing.