Experimental technique I believe
A chemical substance that can be formed from the ionic bonding of an anion and a cation would be Al2O3.
Bacteria have different phage resistance mechanisms, such as spontaneous mutations, the CRISPR-Cas system.
Spontaneous mutations are the main mechanisms leading to phage resistance by altering the structure of bacterial wall components that act as phage receptors. These include lipopolysaccharides (LPS), outer membrane proteins, cell wall teichoic acids, capsules, and other bacterial components.
Answer:
D. Geologic process that we observed today occurred the same way in the past.
Explanation:
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