Question

that is known to \play dead
animals. this is an example of a response to which kind of stimulus?the external stimulus of tirednessthe internal stimulus of illnessthe external stimulus of dangerthe internal stimulus of predators

Explanation:

• Tiredness is an internal state, not related to "playing dead" as a survival mechanism.
• Illness is an internal stimulus and not relevant to this behavior.
• Predators are external. The "play dead" behavior is a response to external danger (like the presence of a predator).
• The "play dead" behavior is a survival strategy in the face of external danger (e.g., from predators).

Answer:

the external stimulus of danger