Answer- 
Found this quizlet with the answer hope it helped
 
        
        
        
Answer:
sunlit zone or the euphotic zone
Explanation:
The highest layer of the world's seas is washed in daylight during the daytime. This brilliant sea layer is known as the sunlit zone or the euphotic zone (euphotic signifies "sufficiently bright" in Greek) or the epipelagic zone (epipelagic signifies "upon the ocean")
 
        
             
        
        
        
The answer is "Tolerance only for cold climates". Hope it helped!