-4 has one because it is on the line
        
                    
             
        
        
        
Answer; 
-Coral reefs are a very important component of the ocean’s ecosystem because they support sea life, such as crabs and sea turtles. In fact, over four thousand species depend on the survival of the reefs, which are being destroyed by bleaching. More must be done immediately to save the reefs.
Explanation; 
-Coral reefs are important for many different reasons aside from supposedly containing the most diverse ecosystems on the planet. 
-They protect coastlines from the damaging effects of wave action and tropical storms ( they provide a buffer, protecting our coasts from waves, storms, and floods, helping to prevent loss of life, property damage, and erosion) and also provide habitats and shelter for many marine organisms.
 
        
                    
             
        
        
        
Answer:
A tight junction is a watertight seal between two adjacent animal cells, which prevents materials from leaking out of cells.
Explanation:
 
        
             
        
        
        
Answer:
yes all coll have ribosomes
 
        
                    
             
        
        
        
Answer:
Decomposers get nutrients and energy by breaking down dead organisms and animal wastes. Through this process, decomposers release nutrients, such as carbon and nitrogen, back into the environment. These nutrients are recycled back into the ecosystem so that the producers can use them
Explanation: