Answer:
Emergence of an evolutionary adaptation
Explanation:
 
        
                    
             
        
        
        
The hormone signal will be transduced through the cytoplasm of the target cell.
        
             
        
        
        
Answer:
The independent variable is "controlled" or held constant in the control group.
Explanation:
 
        
             
        
        
        
Answer:
 The Acacia tree's and other small plants the elephants eat would begin to grow in terms of population. Similar to if the elaphants grew in population, the Acacia tree's would decrease in population.
 
        
             
        
        
        
The best answer is A.
The shape of a protein is determined by its primary structure. The primary structure is the sequence of amino acids  in each polypeptide chain which make up a protein.
The sequence of amino acids is basically a list of amino acids that are linked to each other to form a chain which is known as a polypeptide chain.
The structure of the finished protein will depend largely on the first  (primary) chain of amino acids to be produced to make up that protein.