What cellular phase is this? a.) metaphase b.) anaphase c.) interphase d.) prophase

A would be the correct answer. This is why the Interphase is the resting phase where it prepares to duplicate its DNA in mitosis. This shows its not it. The Anaphase is the phase when sister chromatids break apart and move to opposite poles of the cell. This shows this is not it. The Prophase is the phase where the chromatin condenses into chromosomes and the nucleus vanishes. This shows this is not it. Metaphase is the phase where sister chromosomes line up in the middle of the cell. This shows the best answer would be A. Metaphase.

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try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

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b. read the phase at the intersection of any given temperature and pressure.