The answer is "Groundwater"
Answer:
The first line of defense involves skin.
Mutations can lead to changes in the structure of an encoded protein or to a decrease or complete loss in its expression. Because a change in the DNA sequence affects all copies of the encoded protein, mutations can be particularly damaging to a cell or organism.
Answer: Plants are cloned to produce identical plants quickly and economically.
<span>Genetics is the answer</span>