Answer and explanation;
-There are advantages to being multicellular rather than unicellular. These include; allowing the organism to be larger, allowing
cell differentiation (having different types of cells with different functions)
, and also allowing the organisms to be more complex. 
-Complex organisms often have specialized cells that carry out different functions. Having specialized cells and systems allows the process such as transport of nutrients and waste to and from all the cells of the body to occur.
 
        
                    
             
        
        
        
Answer:
3. Sediment makes the water cloudy.
Explanation:
Sedimentation has been identified as a primary stressor for the existence and recovery of coral species and their habitats. Sediment deposited onto reefs can smother corals and interfere with their ability to feed, grow, and reproduce.
Please mark brainliest!
 
        
             
        
        
        
 fine or sheer enough to be seen through
 
        
                    
             
        
        
        
Vascular plants reproduce with seeds, nonvascular plants do not, therefore it is C.