The answer should be <span>single quotation marks</span>
        
             
        
        
        
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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Troposphere should be the answer
        
             
        
        
        
Answer:
First order consumer: the first step in the food chain; they eat the producers
Explanation:
These organisms are usually herbivores. They eat the producers (plants). 
 
        
             
        
        
        
Answer:
b. developing a hypothesis