Cell division is the process by which a parent cell divides into two or more daughter cells. Cell division usually occurs as part of a larger cell cycle.
Neptune's atmosphere, like Jupiter's and Saturn's, is composed primarily of hydrogen and helium, along with traces of hydrocarbons and possibly nitrogen; it contains a higher proportion of ices such as water, ammonia, and methane.
Neptuneâs interior is probably similar to Uranusâ â mostly ordinary water surrounded by a thin atmosphere rich in hydrogen and its compounds and probably has a rock/iron core. Neptuneâs blue, like Uranus, comes from methane in its atmosphere. Unlike Uranus, Neptune has cloud belts. Like Jupiter and Saturn, Neptune radiates more energy than it gains from the Sun.