Answer:
I suppose it would be the seed. 
 
        
                    
             
        
        
        
The answer is B because the humoral immune response is mediated by antibody
        
             
        
        
        
Answer:
To balance the production of certain products.
Explanation:
Feedback inhibition is when byproduct from metabolic reactions in cells accumulates and is in excess. The product goes and inhibits the enzyme that is responsible for speeding its chemical reaction, balancing the amount of product needed, with the amount already produced.
Therefore feedback inhibition is important in metabolic pathways because it balances the production of amino acids and nucleotides. It is there to ensure that the exact amount needed is produced.
 
        
             
        
        
        
The statement that is correct about plasma membranes is that both plant cells and animal cells have flexible plasma membranes (option C).
<h3>What is the plasma membrane?</h3>
Plasma membrane is the semipermeable membrane that surrounds the cytoplasm of a cell. The semi-permeability of the plasma membrane means it allows some molecules through but blocks other substances.
The plasma membrane is the cellular structure that protects and encompasses the cell's content.
All living organisms possess the plasma membrane, which is also called cell membrane. 
Therefore, the statement that is correct about plasma membranes is that both plant cells and animal cells have flexible plasma membranes.
Learn more about plasma membrane at: brainly.com/question/14015347
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