Answer:
True.
Explanation:
Antigen may be defined as the chemical that has the ability to evoke the  and immune response and can harm the living organisms. The specific antibody are produced against the immune response.
The antigens has evolved different mechanisms to prevent themselves from them the immune system of the host. The antigenic shift is the most common change that might occur in viruses that helps the antigen to protect itself by changing its genetic material. No anti viral drugs are available for the viruses.
Thus, the answer is true.
 
        
             
        
        
        
If we all had the same DNA that would mean we would all be the same, no differences <span />
        
             
        
        
        
Answer:
It is the Endocrine System.
Explanation:
The Endocrine System controls and regulates almost all the hormones in your body.
Integumentary System = Skin Tissues
Excretory System = Release of Waste out of the Body
Digestive System = Breakdown of Food
 
        
             
        
        
        
The answer to the question "Upon realizing that your remote is not working even after replacing the batteries you decided to use, this process is called the experiment. You are experimenting on what would happen to the remote if you are going to change the batteries, if it is going to work or not.
        
             
        
        
        
Answer:
Infection of a bacterium by a bacteriophage with subsequent production of more phage particles and lysis, or dissolution, of the cell. The viruses responsible are commonly called virulent phages. Lytic infection is one of the two major bacteriophage–bacterium relationships. 
Lysogeny, or the lysogenic cycle, is one of two cycles of viral reproduction. Lysogeny is characterized by integration of the bacteriophage nucleic acid into the host bacterium's genome or formation of a circular replicon in the bacterial cytoplasm.
Explanation: hope this helps!