extermination

Could someone give me a hint to what these answers could be? thank you! How did the introduction or extermination of the species impact society? What economic impact did the introduction or extermination have? How was the ecosystem affected by the introduction or extermination?

I was wondering how much would it cost to do a early extermination for my phone which expires next month.

Oh, Mighty Mouse, I hate you so. But you and your damn nipple survived extermination after the coming of the Magic Mouse. You had to pay a steep bill to survive, in shame, rejected by The Steve, but you survived. The Apple Store wasn't big enough for a Magic and a Mighty, so someone up there...