1 the global level (how it's important to ecosystems), 2  the plant part level (how leaves are organized for the process), 3  and/or the cellular level (the chemical reactions occuring in the chloroplasts of the plant cells in the leaves of the plant).
Jupiter has 67 known moons, although 17 of them are awaiting official names. More are discovered with every space probe we send there. It is likely that there are more not yet identified. The most recent are extremely small.
Our data has improved considerably in the last 20 years. Mercury: no moons. Venus: no moons. Earth: 1 moon. Mars: 2 moons, Phobos, Deimos. Jupiter: 67 moons, some of which do not yet have proper names. The most famous are the Galilean moons, Io, Europa, Ganymede and Callisto.