What are the main differences between a social and political movement and a political party?

The difference is that a socio-political movement can only point out to the state the interests of certain groups of citizens or agitate for various kinds of problems (for example, a rally of an organization for the protection of animal rights), but such activities are limited only to drawing attention to the problem. While political parties can solve these problems by amendments to the legislation or by other forceful means. (for example, pass a law on cruelty to animals).