Why isn't the atmosphere a closed system? 1.Closed systems only exist in theory.
2.Closed systems are only for liquids, not gases.
3.The laws of physics do not apply to the atmosphere.
4.Gases from Earth escape from the higher realms of the atmosphere.

the speed increase from w to x due to increased gravity force

the speed decreases from x to y due to decrease in gravity

it's the cell cycle, but cytokines is when the cell divides.

theres 3 stages interphase,mitosis,and cytokines.

interphase prepares the cell for division.

mitosis is the process of dividing the cell,it has 4 parts interphase,anaphase,metaphase,and telophase.

lastly there's cytokines,that's when the cell divides into 2 daughter cells