Biomechanical mechanisms, habitat for plants and animals, participates in cycling of all materials used by living things.
        
             
        
        
        
Answer:
Aquatic life quickly suffers the effects of watershed pollution, while new pollutants introduced into ecosystems alter wildlife habitats. This reduces biodiversity by eliminating some species and introducing new, invasive ones that destroy the native species.
Explanation:
 
        
             
        
        
        
A rabbit is a consumer
A mushroom is a decomposer 
A tree is a producer
A sun is the thing where the food webs start