The definition of symbiosis has varied among scientists. Some advocated that the term symbiosis should only refer to persistent mutualisms, while others thought it should apply to any type of persistent biological interaction (in other words mutualistic, commensalistic, or parasitic).
The League of Nations failed for a couple of reasons: 1  The United States was not part of it. 2  More importantly, the countries in the League did not take the idea of collective security seriously.3  When countries attacked others, nothing was done. 4  For example, Italy attacked Ethiopia and Japan attacked China. The United States was not part of it. 2  More importantly, the countries in the League did not take the idea of collective security seriously. 3  When countries attacked others, nothing was done. 4  For example, Italy attacked Ethiopia and Japan attacked China. 5  In both cases, nothing serious was done.
The League of Nations came into being after the end of World War One. The League of Nationâs task was simple â to ensure that war never broke out again.After the turmoil caused by the Versailles Treaty, many looked to the League to bring stability to the world. America entered World War One in 1917.n view of the Leagueâs desire to end war, the only criteria that can be used to classify a success, was whether war was avoided and a peaceful settlement formulated after a crisis between two nations.