<span>The correct answer is c. producer: elodea, consumer: squirrel, decomposer: crayfish, abiotic: phosphates.</span> 
Elodea-the aquatic autotrophic plant (makes its own food) which does photosynthesis, 
Squirrel-animal, heterotrophic organism (consume food which plant produce), <span>Crayfish- feed on animals and plants, either living or decomposing, and detritus,</span> <span>Phosphates-non-living, organic or inorganic molecule.</span>
        
             
        
        
        
Answer:
 overpopulation and it because harmful and hard to control and possibly will diminish the number of normal fishes by killing them with their dangerous life threatening spikes 
 
        
             
        
        
        
Answer:because of the color and shape 
Explanation: