Answer:
The virus integrates into long-lived immune system cells and remains dormant in those cells for many years.HIV's ability to hide its instructions inside of cells where drugs cannot reach it. 
 
        
             
        
        
        
<span>If a child takes large steps which exceeds his or her length, it may mean that he is more advanced or he simply has more walking experience than a normal length walking child. 
Increased step length it shows a sign of improvement in the development of walking. In addition, I can say that large steps are reflected more strength and also balance than he had previously been supposed for the infants who are training themselves on how to walk.</span>
        
             
        
        
        
Answer:
Both climate change and humans were responsible for the extinction of some large mammals, according to research that is the first of its kind to use genetic, archeological, and climatic data together to infer the population history of large Ice Age mammals.
Explanation:
 
        
             
        
        
        
They do lower the activation energy but they provide an alternate pathway for the reaction to happen quicker and they do not get used up in the reaction
        
             
        
        
        
Answer:
weathering occurs when rocks sit in a pool of salt water. weathering or eroding
Explanation: