Which argument is an ad hominem fallacy?

For the word below, click on the drop-down arrows to select the root and its meaning. version

Hurry 20 mins left! study the timeline of russian history, and read the passage from chapter 1 of animal farm. "is it not crystal clear, then, comrades, that all the evils of this life of ours spring from the tyranny of human beings? only get rid of man, and the produce of our labour would be our own. almost overnight we could become rich and free. what then must we do? why, work night and day, body and soul, for the overthrow of the human race! that is my message to you, comrades: rebellion! " which event most likely influenced the writing of this passage? the 1905 massacre of people who were protesting their poor living conditions the 1917 bolshevik revolution, which was inspired by the ideals of lenin the development of the union of soviet socialist republics by lenin in 1922 the collectivization of agriculture by the communist party in russia in 1928

What is a mechanism by which organisms maintain homeostasis when the level of one substance influences the level of another substance or the activity of an organ.