There are innumerable formally organized groups but I will mention two of them as requested. These are: the ASPCA (American Society for the Prevention of Cruelty to Animals) and the Catholic Church.
firefighters and police officer
NFL Players Assoication and the NFL Team owners
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Vascular and non-vascular are the two major groups.
Laws and leaders.
american red cross and fema
Jews and Armenians.
The two important colonial groups that organized in opposition to the taxes imposed by the Stamp Act and the Sugar Act were the Sons of Liberty and the Colonial Assemblies. The Sons of Liberty, a grassroots organization, actively protested against the taxes through demonstrations and boycotts. Meanwhile, the Colonial Assemblies convened to discuss and draft resolutions opposing the acts, fostering unity among the colonies in their resistance to British taxation policies. Together, these groups played a crucial role in mobilizing colonial opposition and laying the groundwork for the American Revolution.
there are to tyes of fitness general and specific
Duopoly, a specific instance of oligopoly.
Vascular and non-vascular. Vascular are typical plants like trees and flowers. Non-vascular includes mosses, hornworts, liverworts and algae
War comes about when two groups of people with weapons (usually organized into nations or organizations) cannot resolve a dispute amicably and proceed to enforce their will over the other through use of violence.