Answer:
Answer is Asp, Gly, Glu.
Explanation:
Asp is aspartic acid which help the body promote robust metabolism.
Glu is glutamine an hydrophilic amino acid that plays important role in immune function. 
Gly is glycine  a hydrophobic acid which is considered to be the smallest amino acid. It is used to treat fatigue and depression.
 
        
             
        
        
        
The answer is Devonian.
Devonian is also known as the age of fishes.Devonian is named after the word Devon, a country somewhere south western England. This age of fishes began the domination of the fishes.
        
             
        
        
        
It will gain water and may burst.