Please rephrase the question, it doesn't make sense.
Answer:
The meaningful differences between organisms in a population are genetic. Variations in the genome of members of a population arise through mutation. Occasionally, a mutation occurs in an individual that is beneficial, that helps that organism be better able to survive and repoduce in its current environment.
b) some bacteria reduce nitrate ion
It would be pictorial data cause historian's use historical pictures.
Answer:
Explanation:deoxyribonucleic