Answer:
They are home to many species of fish and Marine invertebrates.
Explanation:
Coral reef refers to large underwater ecosystem which comprises of dead and living corals. 
Coral reef is made up of calcium carbonate.
They serve as habitat or home for Marine animals.
They are the source of nitrogen and essential nutrients for Marine animals.
 
        
             
        
        
        
Manufacturers add sugars to their cigarette sometimes in the form of honey, etc. This makes cigarettes more enjoyable, particular and addictive in a way.
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D. because the sun grows the grass the mouse eats the grass and the snake eats the mouse...
        
             
        
        
        
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.
        
             
        
        
        
Answer:
A goldfish to feed to his cat.