Cells know how to differentiate through a process called gene expression. It’s a specific combination of genes that are turned on and off.

the answer is d.pacific ocean is the largest ocean in the world it is also the world's deepest ocean.
I think the answer is C. None of the other animals are mammals.
Answer:
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Explanation:
Giuseppe Mercalli (1850-1914) originally developed the scale, with ten levels. In 1902, Adolfo Cancani extended the scale to include twelve levels. August Heinrich Sieberg completely rewrote the scale. For this reason, the scale is sometimes named Mercalli-Cancani-Sieberg scale, or MCS scale.