Answer:
Adrian's adaptive immune system remembered the antigens from the virus. so he becomes immune to it. 
Explanation:
 
        
             
        
        
        
Charles Darwin made the observations which led to the theory of evolution.
        
             
        
        
        
These are all true- Vacuoles might store food or any variety of nutrients a cell might need to survive but they can even store waste products so the rest of the cell is protected from contamination. They’re also larger in plants than in animals
        
                    
             
        
        
        
Answer:
Flora refers to plant life, while fauna refers to animals!
Explanation:
 
        
             
        
        
        
The intermediate color or rather condition, in this case "roan", is a result of two alleles being codominant. Codominance occurs when the phenotype (or the physical expression of the gene) of a heterozygote individual expresses both the alleles in a pair of genes. In the given situation, both parents are homozygotes.