Antivenin is a biological material used to neutralize the venom of poisonous creatures like snakes, scorpions, spiders, and other insects. The antitoxins are created by injecting a small amount of venom into a serum-producing animal such as a horse, sheep, goat, or rabbit. The subject animal then suffers an immune response to the venom and produces antibodies which can be harvested from its blood and used to treat envenomation in others. What is mithridatism, and why is it so named? Discuss