Answer:
A community
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Diffusion is across a semi-permeable membrane. The larger the membrane, the longer the diffusion takes
        
             
        
        
        
Answer:
<em>In biochemistry and pharmacology, receptors are chemical structures, composed of protein, that receive and transduce signals that may be integrated into biological systems</em>
 
        
             
        
        
        
Answer:
16 genetically different offspring
Explanation:
This is the case as each parent has the ability to produce 4 uniquely different gametes through independent assortment. With such a scenario where each parent can product 4 uniquely different gametes multiplied by 4 parents, you have 16 offspring. So there's the possibility of producing 16 offspring that are unique.
 
        
             
        
        
        
Answer:
The insulin must be administered.
Explanation:
In the given question the Mary has the acidosis that is the level of pH in the blood have dropped below 7.  
It is also provided that the smell of her breath is fruity due to the accumulation of fruity smell molecules called ketones which could be the result of the ketosis. Ketosis occurs when the cellular respiration uses fat as a substrate instead of the carbohydrate. This shows Mary has a condition called ketoacidosis.
The increased level of the glucose in the blood shows that the glucose is not absorbed by the cell which involves the insulin therefore the doctor should administer the insulin drug to the patient.
Thus, insulin is the correct answer.