Answer:
The correct answer is option - A, B, C, and D.
Explanation:
The adaptive immune system is also known as a specific immune system or acquired immune system is an immunization system that is made up of which is clonal as it expands rapidly the Lymphocytes that are T lymphocytes and B lymphocytes. The adaptive immune system also has memory this is the reason vaccination is used so it can generate antibodies and make memory cells. Vaccines induce the production of the immune cells or antibodies so it can be stated that it is inducible.
Thus, the correct answer is option - A, B, C, and D.
 
        
             
        
        
        
<span>i think Comparative morphology
i could be wrong tho</span>
        
                    
             
        
        
        
Answer:
Veins
1l carry blood from tissue of the body to the heart 
2) are usually found closer beneath the skin
3) are less muscular then arteries 
4) collapse if blood flow stops 
arteries 
1) carry blood back away from the heart to the tissue of the body. 
2) found deeper within the body 
3) are more muscular then veins 
4) would generally remain open even if blood stops because of it's muscular structure.