The first organisms in the food chain are the producers.  These are the plants.  Their role is to capture energy from the sun and turn it into chemical energy that is then used by every other organism in the community.
 
        
             
        
        
        
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a 80% b50% ctwo billionths one one- hundredth
 
        
                    
             
        
        
        
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Sensory neurons are found in receptors such as the eyes, ears, tongue and skin, and carry nerve impulses to the spinal cord and brain. Relay neurons are found between sensory input and motor output/response. Relay neurons are found in the brain and spinal cord and allow sensory and motor neurons to communicate.
Explanation:
Hope it really helps
 
        
             
        
        
        
Answer:
I think Eukaryotic, and Stationary goes to the Elodea cell, and the other two goes to the other one