It might have been that once the Earth started to warm, some animals weren't able to adapt. Or possibly because new needs had to be met, so they found new animals to domesticate that could help with the new situation.
If you are talking about the development of political parties, then the issue that led it to them was “the struggle over ratification of the federal Constitution of 1787” (loc.gov).
Federalists, such as Alexander Hamilton, wanted a strong, central government and the Anti-Federalists, like Thomas Jefferson, “advocated states’ rights instead of centralized power”. (Library of Congress)
The correct answer is D) Zora Neale Hurston.
<em>The writer that contributed to the Harlem Renaissance was Zora Neale Hurston</em>
Zora Neale Hurston (1891-1960), was an African American writer and civil rights supported that contributed to the period known as the Harlem Renaissance with important novels such as "Sweat" and "Her Eyes were Watching God." Hurston was an important part of the Harlem Renaissance and was a friend of key figures of the Harlem Renaissance such as Countee Collen and Lanston Hughes.
The leader of PLO is Yasser Arafat. Hope this helped!