A cephalopod is a predatory-like mollusk of the large molluscan class of Cephalopodan animals. This includes cuttlefish, octopus, squid, and/or nautilus. They are animals that live in the ocean. Additionally they eat foods like fish and jellyfish on regular and customary occasions. They sometimes possess cannibalism by eating their own species, which is absolutely crazy. Anyways, I hope that this has helped you today.. :)
 
        
                    
             
        
        
        
Well theory isnt proven. It means you have a strong idea about the subject your talking about. So if a scientist finds evidence that suggests something against the theory then it can be changed. 
        
                    
             
        
        
        
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on the outer surface of the red blood cell membrane 
 
        
             
        
        
        
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b. quantitative observation 
if its wrong sorry.
hope this helps you ☺️☺️
 
        
             
        
        
        
It keeps the temperature on Earth - moderate
Earth would overheat if the sea wasn't able to retain large amounts of heat