<span>I think it's right, sorry if its not. ATP binding site Actin binding site</span>
        
             
        
        
        
The answer is a carrying capacity.
The carrying capacity is the maximum size of some population, for example, wolves population, that can survive in the given environment, in this case, the forest. It represents the number of animals that can live, reproduce, survive in the given area regarding the indefinite sustainability of this area in terms of resources (food, water, habitat, etc.)
        
                    
             
        
        
        
Anxious and apprehensive are signs that the patient doesn't have enough blood to his brain. The cause probably is the low blood pressure. <span>
Open abdominal surgery is a major surgery so it should have a high risk of bleeding. </span>Bleeding in abdominal space is dangerous because it was not visible and space is massive. The source could be a rupture of a blood vessel or broken stitch of the surgical wound. 
<span>Then, the most likely cause for the sudden blood pressure drop in this patient would be massive bleeding. 
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B) One swims freely and the other often lives attached to a hard surface.
        
                    
             
        
        
        
I’m not sure what your asking. But if you have 2 different alleles of a gene it will be heterozygous