Question

Any change in the environment that results in a change in activity of the body is known as:

• A. Stimulus
• B. Response
• C. Impulse
• D. Effector

Answer 1

The correct option is A

Stimulus

Any change in the environment that results in a change in activity of the body is known as a stimulus.

* Response $\to$ The activity of body due to the stimulus.

* Impulse $\to$ A wave of electrical disturbance that runs through the nerves.

* Effector $\to$ Any muscle or gland which acts in response to impulses received from the brain.