Toward the end of the G1 phase, a cell can "exit" the cell cycle when it receives a signal to differentiate, or when resources are insufficient to
grow and divide. Whether or not a cell exits the cell cycle depends on the.
The cell is then said to be in GO
-a resting, or nondividing, stage.

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he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

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