Answer:
Because it help us to maintain biodiversity of our planet.
Explanation:
 
        
             
        
        
        
<span>The answer to the question is that the behavior is an example of overproduction. A frog needs to lay thousands of eggs because so many of them die in the process of hatching to tadpole stage to frog. A frog lays so many eggs in the hope that a few of them will be able to reach adulthood and be able to reproduce the species in the future.</span>
        
             
        
        
        
It kills of the virus while strengthening the immune system
        
             
        
        
        
Answer:
covalent bonds
Explanation:
Nucleotides are joined together by covalent bonds between the phosphate group of one nucleotide and the third carbon atom of the pentose sugar in the next nucleotide.