Respuesta :
The correct answer is 4. Being startled is a reflexive action, and waving to a friend is a voluntary action.
Reflexive action occurs involuntarily in a response to a stimulus whereas, a voluntary action is consciously done by a person. The person has total control on the action. A voluntary action is controlled by the brain and involuntary action is controlled by the spinal cord.
Therefore, in the given question, being startled is a reflexive action, and waving to a friend is a voluntary action.
Answer:
Being startled is a reflexive action, and waving to a friend is a voluntary action.
Explanation:
Getting startled is a quick response that doesn’t require thinking. So, it’s a reflex action. On the other hand, waving is a voluntary action that requires thinking and coordination between the brain and the muscles.