Answer:
Inter-Tidal Zone
Explanation:
This area is known as the inter-tidal zone, where the animals must be able to withstand the sun's heat and the ocean.
 
        
             
        
        
        
Answer:
Means to increase drag and prevent sinking is the correct answer.
Explanation:
Plankton avoid sinking by increasing their surface area and decreasing their density. Spines slow down sinking by adding surface area without increasing density. Defense against predation would be to sing below. Not the opposite.
 
        
             
        
        
        
The answer is nucleus (structure A) 
because nucleus DNA would be destroyed
        
             
        
        
        
Desert because they are always dry, but in the colder months they can get cold