During the transfer of energy from one tropic level to the next tropic level around 90% of the total energy is lost in the metabolic processes in the form of heat. Hence only about 10% of the total energy can only be transferred from one tropic level to the next tropic level.
        
                    
             
        
        
        
The answer is A
This is because 90% of energy is lost when we go up one trophic level. This means that even the the consumers tend to be larger in size, they are fewer in number and need to eat more in order to sustain themselves.
        
                    
             
        
        
        
A pollutant is a substance or energy introduced into the environment that has undesired effects, or adversely affects the usefulness of a resource.
        
                    
             
        
        
        
<span>The control would be a  plant grown without any fertilizer.  This is called  a negative control and is important in identifying the influence  of the treatments on the tests. In this case, it would mean that the plant without fertilizer (control) is not expected to grow as large as in the other treatment. </span>
        
             
        
        
        
Answer:
A trait can take on almost anything! Like your hair, your eyes, your nose, and... sometimes even the way you speak!
Explanation: