The respiratory system brings air into the lungs supplying the blood with oxygen. Oxygen is carried throughout the body to the organs and keeps the heart pumping and when the blood circulates back to the lungs the process starts over again.
        
             
        
        
        
Drug that demages capsule is used to treat viral infection because Curing a viral infection  antibiotics are useless against viral infections. This is because viruses are so simple that they use their host cells to perform their activities for them. So antiviral drugs work differently to antibiotics, by interfering with the viral enzymes instead.  
Antiviral drugs are currently only effective against a few viral diseases, such as influenza, herpes, hepatitis B and C and HIV – but research is ongoing. A naturally occurring protein, called interferon (which the body produces to help fight viral infections), can now be produced in the laboratory and is used to treat hepatitis C infections.
 
        
             
        
        
        
Answer:
The results are useless
Explanation:
The alkaline/alkaline results could indicate that only the protein was utilized by the organism, but it could also be a result of prolonged incubation. The organisms could have exhausted that available sugar and then reverted to protein catabolism.
 
        
                    
             
        
        
        
The choices can be found elsewhere and as follows:
<span>a) mixture called a suspension 
b) mixture called a solution 
c) solution and suspension 
d) mixture only.
</span>
I believe the answer is option B. If you stir salt into boiling water, you produce a mixture called a solution. Hope this answers the question. Have a nice day.
        
             
        
        
        
Answer:
Because it is also one of the larval stages in some other groups of invertebrates, and are used by biologists to deduce evolutionary relationships among different groups of invertebrates
Explanation:
hope it will help you.