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.
Mars has 2 moons, Phobos and Deimos. Then the outer planets like Jupiter has 67 moons (as of 2014) out of which Ganymede, Europa, Io, Callisto are major moons. Saturn has 62 moons. Titan is the biggest one and the others are Enceladus, Mimas, Iapetus etc.