Answer:
Mutation. A mistake made while DNA copies which causes changes in DNA
Explanation:
<span>Sputum membranes tests are used to test the lungs, trachea and bronchial canals for pathogens that can have an adverse affect on the lungs. These pathogens can cause infections that can have serious effects on your breathing and all over health.</span>
Answer:
When elements and compounds that are dissolved in water leave a solution, crystallization occurs. Minerals form in this way underground & in bodies of water.
Explanation: so either underground or water