"Altered ecosystems" is the one consequence of global warming among the following choices given in the question that <span>is described as having an increase in growing season, changes in migration, and loss of species. The correct option among all the options that are given in the question is option "D".</span>
        
                    
             
        
        
        
In HIV-infected patients, there is a gradual loss of CD4+ T cells over time. These cells, also called T helper cells, organize the immune system's attack on disease-causing invaders, like Salmonella.
        
             
        
        
        
Answer:
D is the correct a answer।
 
        
             
        
        
        
I think it’s d sorry if I’m wrong
        
             
        
        
        
Answer:
D. They find more things that are not understood
Explanation:
After discovering something, scientist tend to find something related that sparks their curiousity.