As the question is incomplete and there are no statements available based on which the question can be answered. But based on the knowledge it can be answered.
Answer:
Most of the corals contains photosynthetic algae which are known as zooxanthllae which lives in the tissues of the corals. Algae and corals have mutualistic relationship.
The corals provide algae space to live and algae provides coral  food such as glucose and glycerols to them which are considered as products of photosynthesis.
If the producers are hampered by the catastrophic event then the main source of the food will be hampered. There will be less or no food source for the corals which covers a large area in the marine ecosystem.
There are chances that there will be more load on the other photosynthetic organism in water as there will be more population dependent on them for food.
Hence, if there is a loss of habitat for these protist other levels of food chain will be affected due to inter connection.
 
        
             
        
        
        
 
<span>The cells of plants
and animals are similar expect for a few different structures like the shape of
the cells and cell wall. They differ in cell shape since animal cells are rounded
and it has irregular shape while plant cells have fixed shape which is
rectangular. Another structure is a cell wall. Animal cells don’t have cell wall
while plant cells have. Plant cell wall is a structure surrounding the cell
that provides a number of functions such as strength to support the plant, Flexibility,
Water-proofing, Barrier to pests, Protection against environmental stress, signaling
and sensing.            </span>
        
                    
             
        
        
        
Interspecific competition
 A type of competition in which organisms belong to different species compete with each others for same resources.
Example
 Leopard and lion.
intraspecific competition 
 A type of competition in which organism belong to same species compete with each others for same resources.
Example
 birds for breeding or shelter compete with each others
        
                    
             
        
        
        
The builder can he fix it