Weegy: Answer is: Is a part of speech that expresses existence, action, or occurrence in most languages. Thank you!
Stimulus – Response: Reaction Time
Problem: To observe the process of stimulus – response. [
Background Information: Your body reacts to your environment
because of your NERVOUS SYSTEM.
Any internal or external change that causes a RESPONSE is called
Coordinated movements of the human body do not happen by ... (More)