Answer: Leopard - predator, acting in response to stimulus - the hog, reaction - run after the hog: Hog - prey, acting in response to stimulus - being hunted by leopard, reaction - run.
Explanation: We can clearly see that the leopard is the predator here, acting in response to its stimulus - the hog. The reaction is to run after the prey (the hog), which when the hog sees the leopard (stimulus) - attempts to run for its own survival (reaction).
