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Which of the following describes a random event?
A group of peafowl are nesting in a forested area. During a monsoon, a large chunk of wood lands on one of the peacocks.
A peafowl with drab coloring escapes a predator by hiding in tall grasses.
A tiger catches a peacock by his long, beautiful tail and eats him.
When a blood parasite spreads through a peafowl population, the individuals with a certain protein on their blood cell surface survive at a higher rate than those without the protein.