C.) D<span>iscontinue the use of irrigation systems</span>
Answer:
genetics;the study of heredity and the variation of inherited characteristics.
evolution;evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection
variation;a change or difference in condition, amount, or level, typically with certain limits
Explanation:
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Face Muscle
Reasoning- Right by the Jaw of the face where the muscles of mastication is.
