Answer:
The answer is B. Mergus serrator and Mergus merganser
Explanation:
- <u><em>They are ducks and they are closley related.</em></u>
 
        
             
        
        
        
Fungi eat the dead plants aka nutrients to stay alive
        
                    
             
        
        
        
Answer:
Because some effects will occur.
Explanation:
The positive test which was the result for the organic molecules for the water sample showed that there is some change occurs in water sample by adding of organic molecules due to which the results of the test comes positive. If there is no change occurs in the water sample by adding some organic molecules so the results will come negative which means no effect.