Which one of the following is NOT an example of behavior?

Question

Quizplus · Accepted Answer

Behavior is an action or reaction that an organism undertakes in response to external or internal stimuli. Choices A, B, and D (a plant bending toward light, a student sleeping in class, and a cat purring) are all examples of behaviors because they involve organisms responding to stimuli. Choice C (the wind rustling fallen autumn leaves) is not an example of behavior because it involves a physical process, not an action or reaction of an organism.

Which One of the Following Is NOT an Example of Behavior