The answer is transport vesicles
        
             
        
        
        
More often. please correct me if I am wrong
        
             
        
        
        
Answer:
The bottom one shows how the circulatory system of a fish functions.
 
        
                    
             
        
        
        
Answer:
The shape of the planets and dwarf planets after accumulating all their material is a Sphere. 
 
        
             
        
        
        
Hippocrates was a Greek physician, he is well known for the discovery of the medicines, which were based on the scientific observation. He is also known as virtual originator of the etiology and the pathology. 
Hippocrates suggested that the body can remain disease free, or the chances of being diseased can be diminished, if good diet, fresh air, cleanliness and exercise are maintained. 
Hence, four things, which help body to heal itself, according to Hippocrates are:
- Good diet
- Cleanliness
- Exercise 
- Fresh air