<span>You can introduce your qualities in a letter by being casual. You’re writing this letter to yourself, so don’t feel you have to take a formal tone. Write as though you are talking to your best friend. When talking about your current self in this letter, use “I” language. When talking about your future self in this letter, use “you” language. <span>Summarize the important things of yourself. Your letter should start with a quick reminder of who you currently are. Think about mentioning your recent accomplishments, such as a 4.0 GPA, and current interests, including extracurricular activities. This will allow you to see how much your life has changed since you wrote the letter.</span>
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I think its the Diurnal Cycle. 
 
        
                    
             
        
        
        
The RNA codon will be GAU, pairing Cytosine-Thymine-Adenine DNA codon with Guanine-Adenine-Uracil RNA codon. This codon is the Amino Acid, Aspartic Acid. In this codon we see Uracil which is the counterpart of Thymine in the RNA.
        
             
        
        
        
Answer: They do affect the health of an ecosystem.
Explanation: In an ecosystem there are many things that are biotic and abiotic. For an example: water is abiotic and plants/animals are all biotic, the water is not living but it keeps the ecosystem alive by quenching the thirst of the plants growing from the ground and the animals roaming around on the land. Dead animals and plants are not abiotic and they are now providing food for fungi and bacteria. Without the abiotic factors, it would be difficult for the biotic to survive. 
 
        
             
        
        
        
The answer would be proper strength since others do not make sense in detailed.