1 This quote is signifigant because poe is saying dogs love people unconditionally.
2 Pluto is the name of the god of the underworld.
3 Because he feels guilt for killing the first cat.
4 The cat began to dislike him and claw his clothing.
5 He felt nothing mostly he was sort of surprised that he was able to pull out the cat's eye
6 He thinks all humans in their basic nature are perverse and cruel.
7 He hung the cat because it loved him.