Answer:
The activity that does not represent a beneficial contribution made by biologists is to improve the durability of non-stick coatings (option C).
Explanation:
The development and improvement of non-stick coatings does not correspond to an activity within the field of biology. Anti-stick coatings, such as Teflon, are products developed through industrial activity.
Biologists' activity is focused on living organisms and their interaction with the surrounding environment. Improving arable soils and food quality, as well as increasing life expectancy are activities that fall within the field of study of biology and its related disciplines.
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Biology brainly.com/question/7337562
 
        
             
        
        
        
All the above is correct.
        
             
        
        
        
Predation 
It can be explained in that way or also called Predatory/prey relationships. 
Parasitism is when one is benefited and the other harmed (ie leech and human)
Commensalism is when one is benefited and the other not affected (Tree frog and rainforest tree) 
Mutualism is when both are benefited (Bee eats honey and Flower is pollinated). 
        
                    
             
        
        
        
Answer:
chloroplast is the organelle