Answer:
The answer is (C) studying how is has been affected by erosion
Explanation:
 
        
             
        
        
        
A codon is a sequence of three bases found on the messenger RNA (mRNA) molecule which is translated to produce an amino acid. Each amino acid is coded by one or more specific codons. If the codon is changed through a mutation, the amino acid produced may be different. However, in this case, the other codons that produce Leucine are:
UUA, UUG, CUU, CUC, CUA and CUG
So the code CUU could mutate to CUC, CUA or CUG and leucine would still be produced.
        
             
        
        
        
Answer:
sorry I don't know
Explanation:
in William Carlos Williams' poem "The Widow's Lament in Springtime," why does the poem take place in spring? A to contrast spring with grief B to contrast spring with insanity C to contrast spring with winter can you help me
 
        
             
        
        
        
Answer: Geologic time is divided into units. Major changes in the earth's surface or climate and the extinction of species help to divide the time scale into smaller units.
Explanation: Rocks grouped within each unit contain a similar fossil record.