Answer:
When helicase mutations occur, problems in DNA replication are found. The helicases are proteins that open the 2 strands of DNA to initiate the duplication, they are responsible for breaking the hydrogen bonds between the two DNA chains, thus separating the chains, also they have the function of repairing DNA mutations, if there is mutation in the gene that encodes them, various functions will be absent in the cell.
 
        
             
        
        
        
Answer:
electrons
Explanation:
Electrical energy is caused by moving particles that have a negative or positive charge. These particles are called electrons
 
        
                    
             
        
        
        
Answer:
the law of conservation of energy states that energy can not be created or destryed, it can only be transferred between forms. With regards to the total energy in a system, it remans constant as energy can not be created or destroyed.
Explanation:
 
        
             
        
        
        
Humans disturb the earth and because of this, the earth is weakened.