Let's call the colour alleles C for dominant purple, and c for recessive white.
We have crossed Cc with Cc.  So if we put that in a Punnett square, we'd have a CC, two Cc and a cc.  That would give us a 3:1 ratio of purple to white, so you'd expect 15 purple and 5 white flowers. :)
        
             
        
        
        
A response from the amigdala. The reason for this is that when the medulla starts signalling brain regions that are in upper parts, especially the amigdala, this then triggers the fear response (amigdala is responsible for this) which in turn alerts us on a conscious level that we should leave this room for example and go to somewhere where more oxygen is present. 
        
             
        
        
        
The circulatory aids with the immune system because they provide white-blood cells to help fight with the diseases or sicknesses.
 
        
             
        
        
        
D) take in nutrients because endocytosis is the process when a cell takes in food