The total perimeter is 2 5/6
        
             
        
        
        
the answer i think be a area a has more predators then area b because if it was disease or lack of food source they wouldn't that low i think 
 
        
             
        
        
        
Answer:
 provide a large surface area of moist, selectively permeable membrane.
Explanation:
 
        
             
        
        
        
The stem
 they get sun water and air separated it and put it back together
        
                    
             
        
        
        
Answer:
You need to make sure the dressing is in a good place, because once its on the salad, it cannot hold really well. Well that really depends on the dressing. More liquidy dressings will make your salad soggier faster. So to help with this, you can add herbs, vegies, meat, even some fruit to help soak up the dressing a bit.
Explanation:
I'm not a 100% sure but I hope this helps.